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Cannabis use and mental health problems
Ours, Jan C. van; Williams, Jenny - 2009
Persistent link: https://www.econbiz.de/10003868775
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Decriminalization and initiation into cannabis use
Bretteville-Jensen, Anne Line; Williams, Jenny - 2011
Persistent link: https://www.econbiz.de/10009409818
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Why parents worry : initiation into cannabis use by youth and their educational attainment
Ours, Jan C. van (contributor); Williams, Jenny (contributor) - 2007
Persistent link: https://www.econbiz.de/10003613052
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The impact of cannabis & cigarette use on health
Williams, Jenny (contributor);  … - 2006
Persistent link: https://www.econbiz.de/10003385275