Efficacy and safety of dipyrone versus tramadol in the management of pain after hysterectomy: A randomized, double-blind, multicenter study

1. Torres, L.M.
2. Rodríguez, M.J.
3. Montero, A.
4. Herrera, J.
5. Calderón, E.
6. Cabrera, J.
7. Porres, R.
8. De la Torre, M.R.
9. Martínez, T.
10. Gómez, J.L.
11. Ruiz, J.
12. García-Magaz, I.
13. Cámara, J.
14. Ortiz, P.