"Obel C" - Selaus tekijän mukaan Kansanterveyslaitos KTL
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Is maternal smoking during pregnancy a risk factor for Hyperkinetic disorder? Findings from a sibling design
Obel C; Olsen J; Henriksen TB; Rodriguez A; Järvelin MR; Moilanen I; Parner E; Linnet KM; Taanila A; Ebeling H; Heiervang E; Gissler M
Int J Epidemiol (2011)