Inhalation analgesia with nitrous oxide versus other analgesic techniques in hysteroscopic polypectomy: A pilot study

1. del Valle Rubido, C.
2. Solano Calvo, J.A.
3. Rodríguez Miguel, A.
4. Delgado Espeja, J.J.
5. González Hinojosa, J.
6. Zapico Goñi, T.