[Epidemiologic study of the incidence of drug abuse by pupils of secondary schools].
D000293:Adolescent; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D011044:Poland; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000523:psychology
Z badań epidemiologicznych nad toksykomania wśród młodzieźy szkół średnich.