title: Motivation in drug misuse. Some comments on agent, environment, host.
mesh_terms: D001294:Attitude to Health; D002188:Cannabis / Q000494:pharmacology; D003142:Communication; D005260:Female; D006213:Hallucinogens / Q000494:pharmacology; D003932:Heroin / Q000494:pharmacology; D006801:Humans; D008297:Male; D008694:Methamphetamine / Q000494:pharmacology; D009042:Motivation; D010379:Peer Group; D011593:Psychology, Social; D012924:Social Conditions; D012931:Social Environment; D019966:Substance-Related Disorders; D013690:Television
chemical_list: D006213:Hallucinogens; D008694:Methamphetamine; D003932:Heroin