(Q24814078)
Statements
1 reference
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, Norway (English)
1 reference
Espen Bjertness
1 reference
Lars Lien
1 reference
Brit Oppedal
1 reference
Sonja Heyerdahl
1 reference
5 October 2005
1 reference
1 reference
1
0 references
102
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
Identifiers
1 reference
1 reference
1 reference
1 reference