006900000a22002530004500003000900000005001700009020001500026264004900041700002700090700001500117700001800132700002900150700001900179700001700198700001700215710003100232245003800263300001000301490003700311041000800348650004800356650002100404040001100425PH-MaWHO20241108112158.0 a9241700602 aGeneva : bWorld Health Organization,c1981. aSmart, Reginald George aArif, Awni aHughes, P. H. aMedina Mora, Maria Elena aNavaratnam, V. aVarma, V. K. aWadud, K. A. aWorld Health Organization. aDrug use among non-student youth. a58 p. aWHO offset publications ; no. 60 aeng aSubstance-related disordersxIn adolescence aStudent dropouts aWHOLIS