Camacho, I., Gimeno, M. J., Linares, R., & Gimeno, M. C. (2003). Methadone treatment: relationship between dose and retention / Tratamiento con metadona: relaciĆ³n entre dosis y retenciĆ³n. Health and Addictions Journal/Revista Salud Y Drogas, 3(1). https://doi.org/10.21134/haaj.v3i1.154