Madoz-Gúrpide , A.; Barbudo del Cura , E.; Leira Sanmartín, M.; Navío Acosta , M.; Villoria Borrego, L.; Ochoa Mangado, E. Addiction Characteristics As Prognostic Factors in Opiate Dependence Treated With Naltrexone. Actas Esp Psiquiatr 2004, 32, 199-210.