By Hetlevik Øystein   Pløen Øystein   Nystad Wenche   Magnus Per   in Scandinavian Journal of Primary Health Care

ISSN:0281-3432|18|2|122-126

Informa Healthcare‎(2000)‎

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By Bakken Heidi Nygaard   Nafstad Per   Bolle Roald   Nystad Wenche   in Journal of Asthma

ISSN:0277-0903|44|1|23-27

Informa Healthcare‎(2007)‎

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By Nystad Wenche   Nafstad Per   Jaakkola Jouni J. K.   in Scandinavian Journal of Public Health

ISSN:1403-4948|30|1|70-75

Informa Healthcare‎(2002)‎

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By Nafstad Per   Nystad Wenche   Magnus Per   Jaakkola Jouni J. K.   in Journal of Asthma

ISSN:0277-0903|40|4|343-348

Informa Healthcare‎(2003)‎

Access to resources Favorite 10.851168

By Rønningen Kjersti   Paltiel Liv   Meltzer Helle   Nordhagen Rannveig   Lie Kari   Hovengen Ragnhild   Haugen Margaretha   Nystad Wenche   Magnus Per   Hoppin Jane   in European Journal of Epidemiology

ISSN:0393-2990|21|8|619-625

Springer Publishing Company ‎(2006)‎

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