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Scandinavian Journal of Medicine & Science in Sports|February 12, 1998
The physical activity level in children with asthma based on a survey among 7-16 year old school childrenW NystadTidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke|February 20, 1997
[Occurrence of asthma among school children in Norway during the period 1985-94]W Nystad, P Magnus, V SøysethInternational Journal of Epidemiology|December 22, 1999
Day care attendance, recurrent respiratory tract infections and asthmaW Nystad, A Skrondal, P MagnusTidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke|March 13, 2001
[Day care centers, infections and asthma]W Nystad, A Skrondal, P MagnusEuropean Journal of Epidemiology|July 15, 1998
Increasing risk of asthma without other atopic diseases in school children: a repeated cross-sectional study after 13 yearsW Nystad, P Magnus, A GulsvikScandinavian Journal of Medicine & Science in Sports|July 17, 2008
Correlates of regular exercise during pregnancy: the Norwegian Mother and Child Cohort StudyK M Owe, W Nystad, K BøMedicine and Science in Sports and Exercise|February 29, 2000
Asthma and wheezing among Norwegian elite athletesW Nystad, J Harris, J S BorgenEuropean Journal of Epidemiology|October 30, 2001
Physical activity affects the prevalence of reported wheezeW Nystad, P Nafstad, J R HarrisPageof 5