TY - T1 - Patterns of pre-treatment drug abuse, drug treatment history and characteristics of addicts in methadone maintenance treatment in Iran SN - / UR - http://hdl.handle.net/10138/303763 T3 - A1 - Shekarchizadeh, Hajar; Ekhtiari, Hamed; Khami, Mohammad R.; Virtanen, Jorma I. A2 - PB - Y1 - 2012 LA - eng AB - ... VO - IS - SP - OP - KW - 3142 Public health care science, environmental and occupational health; addiction; opiates; methadone Maintenance; socioeconomic; retention; China N1 - PP - ER -