The amotivational syndrome and the college student.
D000293:Adolescent; D000328:Adult; D002188:Cannabis; D003469:Culture; D003864:Depression, Chemical; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009042:Motivation / Q000187:drug effects*; D012044:Regression Analysis; D013332:Student Dropouts; D013334:Students; D019966:Substance-Related Disorders / Q000453:epidemiology / Q000503:physiopathology*