Treatment retention and abstinence of patients with substance use disorders according to addiction severity and psychiatry comorbidity: A six-month follow-up study in an outpatient unit

1. Daigre, C.
2. Rodríguez, L.
3. Roncero, C.
4. Palma-Álvarez, R.F.
5. Perea-Ortueta, M.
6. Sorribes-Puertas, M.
7. Martínez-Luna, N.
8. Ros-Cucurull, E.
9. Ramos-Quiroga, J.A.
10. Grau-López, L.