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Salier Eriksson, J., Ekblom, B., Kallings, L., Hemmingsson, E., Andersson, G., Wallin, P., . . . Ekblom Bak, E. (2019). Active commuting in Swedish workers between 1998 and 2015 - trends, characteristics and cardiovascular disease risk.. Scandinavian Journal of Medicine and Science in Sports
Åpne denne publikasjonen i ny fane eller vindu >>Active commuting in Swedish workers between 1998 and 2015 - trends, characteristics and cardiovascular disease risk.
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2019 (engelsk)Inngår i: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
Abstract [en]

BACKGROUND: Trend analyses of active commuting and potential variations in trends and association with cardiovascular disease (CVD) risk within sub-groups are unknown.

OBJECTIVES: To a) describe trends in active commuting between 1998 to 2015 and b) to study the association between different amounts of active commuting and the incidence risk of CVD in a large sample of Swedish workers, and analyses of potential variations across sub-groups of socio-demographics, physical activity and BMI.

METHODS: A total of 318,309 participants (47% women, 18-74 years) who participated in a nationwide occupational health service screening between 1998 and 2015 were included. Commuting habits were self-reported, and data on first-time CVD events were derived from national registers.

RESULTS: Self-reported passive commuters decreased between 1998 and 2015 (64% to 56%), transferring to an increase in mainly moderate/high-dose active commuters (12% to 19%). Changes were seen in all subgroups. The characteristics and life-style habits of the typical passive and active commuter changed little over the study period. Low- and moderate/high-dose active commuters had significantly decreased risks for a first time CVD during follow-up. This was accentuated in men, middle-aged and in participants with light physical work situations, irregular exercise habits, being overweight/obese and with low fitness.

CONCLUSION: Increases in active commuting were observed between 1998 and 2015, however still leaving a majority who do not actively commute. As active commuting, regardless dose, is associated with a lower CVD risk, encouraging more people to actively commute may provide an easily accessible and time-efficient possibility to increase physical activity and health in the general population.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2019
Emneord
active commuting, cardiovascular disease, cycling, physical activity, trends, walking, working population
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5889 (URN)10.1111/sms.13581 (DOI)31631386 (PubMedID)
Prosjekter
HPI-gruppen
Tilgjengelig fra: 2019-10-28 Laget: 2019-10-28 Sist oppdatert: 2019-10-31bibliografisk kontrollert
Larsson, K., Kallings, L., Ekblom, Ö., Blom, V., Andersson, E. & Ekblom, M. (2019). Criterion validity and test-retest reliability of SED-GIH, a single item question for assessment of daily sitting time.. BMC Public Health, 19(1), Article ID 19:17.
Åpne denne publikasjonen i ny fane eller vindu >>Criterion validity and test-retest reliability of SED-GIH, a single item question for assessment of daily sitting time.
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2019 (engelsk)Inngår i: BMC Public Health, ISSN 1471-2458, E-ISSN 1471-2458, Vol. 19, nr 1, artikkel-id 19:17Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BACKGROUND: Sedentary behaviour has been closely linked to metabolic and cardiovascular health and is therefore of importance in disease prevention. A user-friendly tool for assessment of sitting time is thus needed. Previous studies concluded that the present tools used to assess a number of sedentary behaviours are more likely to overestimate sitting than single-item questions which often underestimate sitting time, and that categorical answering options are recommended. In line with this, the single-item question with categorical answering options, SED-GIH, was developed. The aim of this study was to investigate the criterion validity of the SED-GIH question using activPAL3 micro as the criterion measure. The second aim was to evaluate the test-retest reliability of the SED-GIH questionnaire.

METHOD: In the validity section of this study, 284 middle-aged adults answered a web questionnaire, which included SED-GIH, wore activPAL and filled in a diary log for one week. Spearman's rho assessed the relationship between the SED-GIH answers and the daily average sitting time as monitored by the activPAL (activPAL-SIT), a Weighted Kappa assessed the agreement, ANOVA assessed differences in activPAL-SIT between the SED-GIH answer categories, and a Chi2 compared the proportions of hazardous sitters between the different SED-GIH answer categories. In the reliability section, 95 elderly participants answered the SED-GIH question twice, with a mean interval of 5.2 days. The reliability was assessed with ICC and a weighted Kappa.

RESULTS: The SED-GIH question correlated moderately with activPAL-SIT (rho = 0.31), with a poor agreement (weighted Kappa 0.12). In total, 40.8% underestimated and 22.2% overestimated their sitting time. The ANOVA showed significant differences in activPAL-SIT between the different SED-GIH answer categories (p < 0.001). The Chi2 showed a significant difference in proportion of individuals sitting more than 10 h per day within each SED-GIH answer category. ICC for the test-retest reliability of SED-GIH was excellent with ICC = 0.86, and the weighted Kappa showed an agreement of 0.77.

CONCLUSIONS: The unanchored single item SED-GIH question showed excellent reliability but poor validity in the investigated populations. Validity and reliability of SED-GIH is in line with other questionnaires that are commonly used when assessing sitting time.

sted, utgiver, år, opplag, sider
BioMed Central, 2019
Emneord
Adults, Office-based work, Older adults, Reliability, Sedentary behaviour, Sitting, Validity, activPAL
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5520 (URN)10.1186/s12889-018-6329-1 (DOI)30611226 (PubMedID)
Tilgjengelig fra: 2019-01-08 Laget: 2019-01-08 Sist oppdatert: 2019-01-08
Ekblom, M., Bojsen-Möller, E., Tarassova, O. & Ekblom, Ö. (2019). Day-to day variations in physical activity patterns affect corticospinal excitability on the following day. In: Brain Stimulation March-April 2019, vol 12, issue 2: . Paper presented at 3rd International Brain Stimulation Conference, Feb 24-27 2019, Vancouver (pp. 468). Elsevier, 12(2), Article ID 437.
Åpne denne publikasjonen i ny fane eller vindu >>Day-to day variations in physical activity patterns affect corticospinal excitability on the following day
2019 (engelsk)Inngår i: Brain Stimulation March-April 2019, vol 12, issue 2, Elsevier, 2019, Vol. 12, nr 2, s. 468-, artikkel-id 437Konferansepaper, Oral presentation with published abstract (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Elsevier, 2019
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5738 (URN)10.1016/j.brs.2018.12.523 (DOI)
Konferanse
3rd International Brain Stimulation Conference, Feb 24-27 2019, Vancouver
Tilgjengelig fra: 2019-05-09 Laget: 2019-05-09 Sist oppdatert: 2019-05-20bibliografisk kontrollert
Ekblom Bak, E., Ekblom, Ö., Andersson, G., Wallin, P., Söderling, J., Hemmingsson, E. & Ekblom, B. (2019). Decline in cardiorespiratory fitness in the Swedish working force between 1995 and 2017.. Scandinavian Journal of Medicine and Science in Sports, 29(2), 232-239
Åpne denne publikasjonen i ny fane eller vindu >>Decline in cardiorespiratory fitness in the Swedish working force between 1995 and 2017.
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2019 (engelsk)Inngår i: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 29, nr 2, s. 232-239Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BACKGROUND: Long-term trend analyses of cardiorespiratory fitness (VO2 max) in the general population are limited.

OBJECTIVES: To describe trends in VO2 max from 1995 to 2017 in the Swedish working force and to study developments across categories of sex, age, education, and geographic regions.

METHODS: 354.277 participants (44% women, 18-74 years) who participated in a nationwide occupational health service screening between 1995 and 2017 were included. Changes in standardized mean values of absolute (L·min-1 ) and relative (ml·min-1 ·kg-1 ) VO2 max, and the proportion with low (<32) relative VO2 max are reported. VO2 max was estimated using a submaximal cycle test.

RESULTS: Absolute VO2 max decreased by -6.7% (-0.19 L·min-1 ) in the total population. Relative VO2 max decreased by -10.8% (-4.2 ml·min-1 ·kg-1 ) with approximately one-third explained by a simultaneous increase in body mass. Decreases in absolute fitness were more pronounced in men vs. women (8.7% vs. 5.3%), in younger vs. older (6.5% vs 2.3%), in short (11.4%) vs. long (4.5%) education, and in rural vs. urban regions (6.5% vs 3.5%), all p<0.001. The proportions with low VO2 max increased from 27% to 46% (p<0.001).

CONCLUSION: Between 1995 and 2017, there was a steady and pronounced decline in mean cardiorespiratory fitness in Swedish adults. Male gender, young age, short education and living in a rural area were predictive of greater reductions. The proportion with low cardiorespiratory fitness almost doubled. Given the strong associations between cardiorespiratory fitness and multiple morbidities and mortality, preventing further decreases is a clear public health priority, especially for vulnerable groups. This article is protected by copyright. All rights reserved.

sted, utgiver, år, opplag, sider
John Wiley & Sons, 2019
Emneord
Maximal oxygen consumption, VO2max, aerobic capacity, population, secular trend
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5460 (URN)10.1111/sms.13328 (DOI)30351472 (PubMedID)
Prosjekter
HPI-gruppen
Tilgjengelig fra: 2018-10-31 Laget: 2018-10-31 Sist oppdatert: 2019-01-18bibliografisk kontrollert
Fridolfsson, J., Börjesson, M., Buck, C., Ekblom, Ö., Ekblom Bak, E., Hunsberger, M., . . . Arvidsson, D. (2019). Effects of Frequency Filtering on Intensity and Noise in Accelerometer-Based Physical Activity Measurements.. Sensors, 19(9), Article ID E2186.
Åpne denne publikasjonen i ny fane eller vindu >>Effects of Frequency Filtering on Intensity and Noise in Accelerometer-Based Physical Activity Measurements.
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2019 (engelsk)Inngår i: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 19, nr 9, artikkel-id E2186Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In objective physical activity (PA) measurements, applying wider frequency filters than the most commonly used ActiGraph (AG) filter may be beneficial when processing accelerometry data. However, the vulnerability of wider filters to noise has not been investigated previously. This study explored the effect of wider frequency filters on measurements of PA, sedentary behavior (SED), and capturing of noise. Apart from the standard AG band-pass filter (0.29-1.63 Hz), modified filters with low-pass component cutoffs at 4 Hz, 10 Hz, or removed were analyzed. Calibrations against energy expenditure were performed with lab data from children and adults to generate filter-specific intensity cut-points. Free-living accelerometer data from children and adults were processed using the different filters and intensity cut-points. There was a contribution of acceleration related to PA at frequencies up to 10 Hz. The contribution was more pronounced at moderate and vigorous PA levels, although additional acceleration also occurred at SED. The classification discrepancy between AG and the wider filters was small at SED (1-2%) but very large at the highest intensities (>90%). The present study suggests an optimal low-pass frequency filter with a cutoff at 10 Hz to include all acceleration relevant to PA with minimal effect of noise.

sted, utgiver, år, opplag, sider
MDPI, 2019
Emneord
ActiGraph, Axivity, I.Family, LIV-2013, adults, calibration, children
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5745 (URN)10.3390/s19092186 (DOI)000469766800230 ()31083538 (PubMedID)
Prosjekter
Mätning av det dagliga aktivitetsmönstret
Tilgjengelig fra: 2019-05-20 Laget: 2019-05-20 Sist oppdatert: 2019-08-20
Yang, L., Lu, K., Forsman, M., Lindecrantz, K., Seoane, F., Ekblom, Ö. & Eklund, J. (2019). Evaluation of physiological workload assessment methods using heart rate and accelerometry for a smart wearable system.. Ergonomics, 62(5), 694-705
Åpne denne publikasjonen i ny fane eller vindu >>Evaluation of physiological workload assessment methods using heart rate and accelerometry for a smart wearable system.
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2019 (engelsk)Inngår i: Ergonomics, ISSN 0014-0139, E-ISSN 1366-5847, Vol. 62, nr 5, s. 694-705Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Work metabolism (WM) can be accurately estimated by oxygen consumption (VO2), which is commonly assessed by heart rate (HR) in field studies. However, the VO2-HR relationship is influenced by individual capacity and activity characteristics. The purpose of this study was to evaluate three models for estimating WM compared with indirect calorimetry, during simulated work activities. The techniques were: the HR-Flex model; HR branched model, combining HR with hip-worn accelerometers (ACC); and HR + arm-leg ACC model, combining HR with wrist- and thigh-worn ACC. Twelve participants performed five simulated work activities and three submaximal tests. The HR + arm-leg ACC model had the overall best performance with limits of agreement (LoA) of -3.94 and 2.00 mL/min/kg, while the HR-Flex model had -5.01 and 5.36 mL/min/kg and the branched model, -6.71 and 1.52 mL/min/kg. In conclusion, the HR + arm-leg ACC model should, when feasible, be preferred in wearable systems for WM estimation. Practitioner Summary: Work with high energy demand can impair employees' health and life quality. Three models were evaluated for estimating work metabolism during simulated tasks. The model combining heart rate, wrist- and thigh-worn accelerometers showed the best accuracy. This is, when feasible, suggested for wearable systems to assess work metabolism.

sted, utgiver, år, opplag, sider
Taylor & Francis, 2019
Emneord
Heart rate, estimation models, motion sensing, risk assessment, wearable sensors, work metabolism
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5702 (URN)10.1080/00140139.2019.1566579 (DOI)30806164 (PubMedID)
Tilgjengelig fra: 2019-04-04 Laget: 2019-04-04 Sist oppdatert: 2019-11-06bibliografisk kontrollert
Hallgren, M., Skott, M., Ekblom, Ö., Firth, J., Schembri, A. & Forsell, Y. (2019). Exercise effects on cognitive functioning in young adults with first-episode psychosis: FitForLife.. Psychological Medicine, 49(3), 431-439
Åpne denne publikasjonen i ny fane eller vindu >>Exercise effects on cognitive functioning in young adults with first-episode psychosis: FitForLife.
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2019 (engelsk)Inngår i: Psychological Medicine, ISSN 0033-2917, E-ISSN 1469-8978, Vol. 49, nr 3, s. 431-439Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BACKGROUND: Exercise has mood-enhancing effects and can improve cognitive functioning, but the effects in first-episode psychosis (FEP) remain understudied. We examined the feasibility and cognitive effects of exercise in FEP.

METHOD: Multi-center, open-label intervention study. Ninety-one outpatients with FEP (mean age = 30 years, 65% male) received usual care plus a 12-week supervised circuit-training program, consisting of high-volume resistance exercises, aerobic training, and stretching. Primary study outcome was cognitive functioning assessed by Cogstate Brief Battery (processing speed, attention, visual learning, working memory) and Trailmaking A and B tasks (visual attention and task shifting). Within-group changes in cognition were assessed using paired sample t tests with effect sizes (Hedges' g) reported for significant values. Relationships between exercise frequency and cognitive improvement were assessed using analysis of covariance. Moderating effects of gender were explored with stratified analyses.

RESULTS: Participants exercised on average 13.5 (s.d. = 11.7) times. Forty-eight percent completed 12 or more sessions. Significant post-intervention improvements were seen for processing speed, visual learning, and visual attention; all with moderate effect sizes (g = 0.47-0.49, p < 0.05). Exercise participation was also associated with a positive non-significant trend for working memory (p < 0.07). Stratified analyses indicated a moderating effect of gender. Positive changes were seen among females only for processing speed, visual learning, working memory, and visual attention (g = 0.43-0.69). A significant bivariate correlation was found between total training frequency and improvements in visual attention among males (r = 0.40, p < 0.05).

CONCLUSION: Supported physical exercise is a feasible and safe adjunct treatment for FEP with potential cognitive benefits, especially among females.

sted, utgiver, år, opplag, sider
Cambridge University Press, 2019
Emneord
Cognition, exercise, first-episode, physical activity, psychosis, schizophrenia
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5276 (URN)10.1017/S0033291718001022 (DOI)29729687 (PubMedID)
Tilgjengelig fra: 2018-05-31 Laget: 2018-05-31 Sist oppdatert: 2019-01-16bibliografisk kontrollert
Godhe, M., Ekblom, Ö., Ekblom, M., Pontén, M. & Andersson, E. (2019). Improved daily movement patterns in an accelerometer-assessed 8-weeks exercise project in older adults. In: British Journal of Sports Medicine Vol 53, suppl 1: . Paper presented at Scandinavian Sports Medicine Congress, Jan 30 - Feb 1 2019, Copenhagen (pp. A2). BMJ Publishing Group Ltd, 53
Åpne denne publikasjonen i ny fane eller vindu >>Improved daily movement patterns in an accelerometer-assessed 8-weeks exercise project in older adults
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2019 (engelsk)Inngår i: British Journal of Sports Medicine Vol 53, suppl 1, BMJ Publishing Group Ltd, 2019, Vol. 53, s. A2-Konferansepaper, Oral presentation with published abstract (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
BMJ Publishing Group Ltd, 2019
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5737 (URN)10.1136/bjsports-2019-scandinavianabs.6 (DOI)
Konferanse
Scandinavian Sports Medicine Congress, Jan 30 - Feb 1 2019, Copenhagen
Tilgjengelig fra: 2019-05-09 Laget: 2019-05-09 Sist oppdatert: 2019-05-20bibliografisk kontrollert
Nooijen, C. F., Blom, V., Ekblom, Ö., Ekblom, M. & Kallings, L. (2019). Improving office workers' mental health and cognition: a 3-arm cluster randomized controlled trial targeting physical activity and sedentary behavior in multi-component interventions. BMC Public Health, 19, Article ID 266.
Åpne denne publikasjonen i ny fane eller vindu >>Improving office workers' mental health and cognition: a 3-arm cluster randomized controlled trial targeting physical activity and sedentary behavior in multi-component interventions
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2019 (engelsk)Inngår i: BMC Public Health, ISSN 1471-2458, E-ISSN 1471-2458, Vol. 19, artikkel-id 266Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background

Physically inactive and sedentary lifestyles are negatively related to both mental health and cognition. For office-workers, who spend two-thirds of their workday sitting, it is important to improve these lifestyles. The aim of this study is to assess the effectiveness of multi-component interventions, incorporating individual, environmental and organizational changes, to increase physical activity or reduce sedentary behavior among office-workers in order to improve mental health and cognition.

Methods

a 3-arm, clustered randomized controlled trial (RCT) with waiting list control group amongst adult office-workers of two large Swedish companies. Cluster teams will be randomized into 6-month interventions or to a passive waiting list control group which will receive the allocated intervention with a 6-month delay. Two multicomponent interventions will be studied of which one focuses on improving physical activity and the other on reducing sedentary behavior. Both interventions include 5 sessions of motivational counselling. In the physical activity intervention persons also get access to a gym and team leaders will organize lunch walks and encourage to exercise. In the sedentary behavior intervention standing- and walking meetings will be implemented and team leaders will encourage to reduce sitting. The recruitment target is 110 office-workers per arm (330 in total). Measurements will be repeated every 6months for a total intended duration of 24months. Proximal main outcomes are physical activity measured with accelerometers and sedentary behavior with inclinometers. Distal outcomes are self-reported mental health and a cognition test battery. Additional outcomes will include cardiovascular fitness, body composition, sleep, self-reported physical activity and sedentary behavior, other health habits, physical health, and working mechanisms from blood samples and questionnaires.

Discussion

This cluster RCT will contribute to the currently available evidence by comparing the effectiveness of multi-component interventions targeting physical activity or sedentary behavior with the end goal of improving mental health and cognition. This study is strong in its cluster randomized design, numerous objective outcome measures and long-term follow-up. The exact content of the interventions has been defined by combining theory with results from a larger research project as well as having a continuous dialogue with the involved companies.

sted, utgiver, år, opplag, sider
Springer, 2019
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5646 (URN)10.1186/s12889-019-6589-4 (DOI)000460405200003 ()30836957 (PubMedID)
Prosjekter
Fysisk aktivitet och hälsosamma hjärnfunktioner bland kontorsarbetare: Delprojekt 3, Långsiktiga interventioner
Tilgjengelig fra: 2019-03-19 Laget: 2019-03-19 Sist oppdatert: 2019-08-06
Zou, D., Wennman, H., Ekblom, Ö., Grote, L., Arvidsson, D., Blomberg, A., . . . Hedner, J. (2019). Insomnia and cardiorespiratory fitness in a middle-aged population: the SCAPIS pilot study.. Sleep and Breathing, 23(1), 319-326
Åpne denne publikasjonen i ny fane eller vindu >>Insomnia and cardiorespiratory fitness in a middle-aged population: the SCAPIS pilot study.
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2019 (engelsk)Inngår i: Sleep and Breathing, ISSN 1520-9512, E-ISSN 1522-1709, Vol. 23, nr 1, s. 319-326Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BACKGROUND: The relationship between insomnia and cardiorespiratory fitness (CRF), a well-established risk factor for cardiovascular disease, has not been extensively studied. We aimed to assess the independent association between insomnia and CRF in a population-based cohort of subjects aged 50 to 64 years.

METHODS: Subjects participating in the Swedish CArdioPulmonary bioImaging Study (SCAPIS) pilot cohort (n = 603, men 47.9%) underwent a submaximal cycle ergometer test for estimation of maximal oxygen consumption (VO2max). Data on physical activity and sedentary time were collected via waist-worn accelerometers. An insomnia severity index score ≥ 10 was used to define insomnia.

RESULTS: Insomnia was identified in 31.8% of the population. The VO2max was significantly lower in insomnia subjects compared with the non-insomnia group (31.2 ± 6.3 vs. 32.4 ± 6.5 ml* kg-1 *min-1, p = 0.028). There was no difference in objectively assessed physical activity or time spent sedentary between the groups. In a multivariate generalized linear model adjusting for confounders, an independent association between insomnia status and lower VO2max was found in men, but not in women (β = - 1.15 [95% CI - 2.23-- 0.06] and - 0.09 [- 1.09-0.92], p = 0.038 and 0.866, respectively).

CONCLUSIONS: We found a modest, but significant, association between insomnia and lower CRF in middle-aged men, but not in women. Our results suggest that insomnia may link to cardiovascular disease via reduced CRF. Insomnia may require a specific focus in the context of health campaigns addressing CRF.

sted, utgiver, år, opplag, sider
Springer, 2019
Emneord
Cardiovascular disease, Gender, Insomnia, Maximal oxygen consumption, Physical activity, Population-based cohort
HSV kategori
Forskningsprogram
Medicin/Teknik
Identifikatorer
urn:nbn:se:gih:diva-5504 (URN)10.1007/s11325-018-1765-9 (DOI)000462650800038 ()30547350 (PubMedID)
Tilgjengelig fra: 2018-12-17 Laget: 2018-12-17 Sist oppdatert: 2019-04-23bibliografisk kontrollert
Organisasjoner
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0001-6058-4982