TY - JOUR KW - 3383:Drug & Alcohol Rehabilitation KW - Adult KW - Adulthood (18 yrs & older) KW - article KW - Cohort Studies KW - Drug Dependency KW - Drug Rehabilitation KW - Empirical Study KW - Female KW - Health Care Utilization KW - Human KW - Humans KW - in treatment cohorts KW - Interview KW - Male KW - Methadone KW - methadone maintenance KW - methadone treatment entry KW - Middle Aged KW - Opiate Substitution Treatment KW - Opiates KW - opioid dependent individuals KW - opioid-related disorders KW - out of treatment cohorts KW - Patient Admission KW - Quantitative Study KW - Substance Abuse Treatment Centers KW - Surveys and Questionnaires KW - US AU - Robert P. Schwartz AU - Sharon M. Kelly AU - Kevin E. O'Grady AU - Shannon Gwin Mitchell AU - Barry S. Brown A1 - BT - Drug and alcohol dependence C5 - Opioids & Substance Use CP - 1-2 IS - 1-2 JF - Drug and alcohol dependence PB - Elsevier Science PY - 2011 SN - 0376-8716, 0376-8716 SP - 23 EP - 29 EP - T1 - Antecedents and correlates of methadone treatment entry: A comparison of out-of-treatment and in-treatment cohorts T2 - Drug and alcohol dependence TI - Antecedents and correlates of methadone treatment entry: A comparison of out-of-treatment and in-treatment cohorts U1 - Opioids & Substance Use UR - https://search.proquest.com/docview/882135070?accountid=28100 VL - 115 VO - 0376-8716, 0376-8716 Y1 - 2011 ER -