title: Conversation with John Ball.
authors.forename: J
authors.initials: J
authors.lastname: Ball
mesh_terms: D005500:Follow-Up Studies; D005544:Forecasting; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D009294:Narcotics / Q000627:therapeutic use*; D009293:Opioid-Related Disorders / Q000523:psychology / Q000534:rehabilitation*; D017063:Outcome Assessment, Health Care; D011785:Quality Assurance, Health Care
chemical_list: D009294:Narcotics; D008691:Methadone