Showing 1 - 9 results of 9 for search 'Bjertness Espen', query time: 0.05s
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Is relatively young age within a school year a risk factor for mental health problems and poor school performance? A population-based cross-sectional study of adolescents in Oslo,... by Heyerdahl Sonja, Oppedal Brit, Tambs Kristian, Lien Lars, Bjertness Espen
Published 2005Connect to this object online.
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Response rates and selection problems, with emphasis on mental health variables and DNA sampling, in large population-based, cross-sectional and longitudinal studies of adolescents... by Lien Lars, Green Kristian, Sagatun Åse, Bjertness Espen, Søgaard Anne, Selmer Randi
Published 2010Connect to this object online.
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