TY - JOUR AU - Sepahvand, Tooraj TI - Comparison of Hope and Self-Efficacy of Successful (without Lapses) and Failed (with Repeated Lapses) Addicts Under Maintenance Methadone Therapy JO - Psychological Research VL - 21 IS - 1 SP - 7 EP - 24 PY - 2019 DO - ER -