title: A pilot study of occasional heroin users.
mesh_terms: D000293:Adolescent; D000328:Adult; D001007:Anxiety; D001294:Attitude to Health; D005260:Female; D003932:Heroin; D006556:Heroin Dependence; D006801:Humans; D007361:Intelligence Tests; D007398:Interpersonal Relations; D007406:Interview, Psychological; D008297:Male; D009042:Motivation; D010551:Personality; D010555:Personality Inventory; D010865:Pilot Projects; D011386:Projective Techniques; D012651:Self Medication; D012919:Social Behavior; D012923:Social Class; D019966:Substance-Related Disorders
chemical_list: D003932:Heroin