Gebruik van riskante middelen onder scholieren vanaf 11 jaar op de Zuid-Holla...
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https://b2find.eudat.eu/dataset/e0887f92-5b5a-5f65-8372-134aa0222bf9
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Smoking habits, alcohol consumption, use of drugs, and gambling by pupils from secondary schools. Frequency of smoking / age when smoking first cigarette / who smoke in family /...
