The serum copper/zinc ratio in childhood and educational attainment: a population-based study.
Petri
P
Böckerman
Alex
A
Bryson
Jyväskylä University School of Business and Economics, Jyväskylä, Finland.
Jutta
J
Viinikainen
Department of Medicine, University of Turku and Division of Medicine, Turku University Hospital, Turku, Finland.
Jorma
J
Viikari
Department of Clinical Chemistry, Fimlab Laboratories and School of Medicine, University of Tampere, Tampere, Finland.
Terho
T
Lehtimäki
University of Helsinki, Hjelt Institute, Helsinki, Finland.
Erkki
E
Vuori
Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland.
Liisa
L
Keltikangas-Järvinen
Olli
O
Raitakari
Jyväskylä University School of Business and Economics, Jyväskylä, Finland.
Jaakko
J
Pehkonen
D000076363:Academic Success; D003300:Copper / Q000097:blood*; D004522:Educational Status; D006801:Humans; D012107:Research Design; D015032:Zinc / Q000097:blood*
D003300:Copper; D015032:Zinc