2023 - Vol. 73 / Issue 6
Effectiveness and safety of ultra-low-dose spinal anesthesia versus perineal blocks in hemorroidectomy and anal fistula surgery: a randomized controlled trial
Rafael Peterson Soares Santos, Alfredo Dias de Oliveira-Filho, Manoel Álvaro de Freitas Lins Neto, Lucas Correia Lins, Fabiano Timbó Barbosa, Sabrina Joany Felizardo Neves