title: Entry into methadone maintenance programs: a follow-up study of New York City heroin users detoxified in 1961-1963.
mesh_terms: D000328:Adult; D000367:Age Factors; D005006:Ethnicity; D005191:Family Characteristics; D005260:Female; D005500:Follow-Up Studies; D003932:Heroin; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D009021:Morphine Dependence / Q000188:drug therapy*; D009519:New York City; D009790:Occupations; D010359:Patient Readmission; D011379:Prognosis; D012017:Referral and Consultation; D012067:Religion; D012494:Sampling Studies; D012737:Sex Factors; D013997:Time Factors
chemical_list: D003932:Heroin; D008691:Methadone