|
|
| | Baptista, João Florêncio de Abreu et al. Epidural anesthesia using a 0,75% ropivacaine and subarachnoid anesthesia with a 0,5% bupivacaine associated or not with clonidine in hemorroidectomies. Acta Cir. Bras., Dec 2008, vol.23, no.6, p.536-542. ISSN 0102-8650
|
|