Rules, rules, rules.
Springen
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D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D002648:Child; D002652:Child Behavior / Q000523:psychology*; D002668:Child Rearing / Q000523:psychology*; D004435:Eating; D006801:Humans; D007899:Leisure Activities / Q000523:psychology*; D010379:Peer Group; D012307:Risk Factors; D013690:Television