Mangado, Enriqueta Ochoa, and F. ARIAS HORCAJADAS. “Alcohol Consumption by Opiate Addicts in Naltrexone Treatment”. Actas Españolas De Psiquiatría, vol. 28, no. 4, July 2000, pp. 239-4, https://actaspsiquiatria.es/index.php/actas/article/view/1263.