title: The aging addict: a longitudinal study of known abusers.
mesh_terms: D000328:Adult; D000367:Age Factors; D000375:Aging; D005006:Ethnicity; D005260:Female; D006556:Heroin Dependence / Q000453:epidemiology* / Q000266:history / Q000534:rehabilitation; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008137:Longitudinal Studies; D008145:Louisiana; D008297:Male; D008691:Methadone / Q000008:administration & dosage / Q000627:therapeutic use; D008875:Middle Aged; D010352:Patient Dropouts; D011619:Psychotropic Drugs / Q000266:history; D019966:Substance-Related Disorders / Q000266:history
chemical_list: D011619:Psychotropic Drugs; D008691:Methadone