title: Problems in methadone treatment: the influence of reference groups.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D009293:Opioid-Related Disorders / Q000523:psychology / Q000534:rehabilitation*; D010349:Patient Compliance; D010352:Patient Dropouts / Q000523:psychology; D012917:Social Adjustment; D012919:Social Behavior; D012931:Social Environment; D012932:Social Facilitation; D012933:Social Identification; D012944:Social Support
chemical_list: D008691:Methadone