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Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke|October 10, 1992
[Prevention of unwanted pregnancies in adolescents in a suburb--is it valuable?]P Nafstad
Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke|October 20, 1989
[Use of ultrasonics in obstetrics in 1988]P Nafstad, B Backe
Lancet (London, England)|September 18, 2001
Relation between occurrence of type 1 diabetes and asthmaL C Stene, P Nafstad
European Journal of Epidemiology|June 28, 2002
Mortality and temperature in Oslo, Norway, 1990-1995P Nafstad, A Skrondal, E Bjertness
The Journal of Asthma : Official Journal of the Association for the Care of Asthma|June 28, 2006
Childhood asthma under the north face of Mount EverestYangzong, P Nafstad, C Madsen, et al.
The Journal of Allergy and Clinical Immunology|November 18, 2000
Risk of childhood asthma and allergic rhinitis in relation to pregnancy complicationsP Nafstad, P Magnus, J J Jaakkola
Pediatrics|September 2, 2000
Early respiratory infections and childhood asthmaP Nafstad, P Magnus, J J Jaakkola
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