Comparative study of the perceived quality of life of patients in treatment for cocaine and heroin dependence in Spain: differences by gender and time in treatment.

Morales-Manrique C, Tomás-Dols S, Zarza-González M, Vidal-Infer A, Álvarez FJ, Valderrama-Zurián JC (2014). Comparative study of the perceived quality of life of patients in treatment for cocaine and heroin dependence in Spain: differences by gender and time in treatmentSubstance use and misuse 49 (10), 1353-1358. Enlace