Barbosa FT, Castro AA, Sousa-Rodrigues CF de. Neuraxial anesthesia for orthopedic surgery: systematic review and meta-analysis of randomized clinical trials. Sao Paulo Med J [Internet]. 2013 Nov. 11 [cited 2025 Mar. 14];131(6):411-2. Available from: https://periodicosapm.emnuvens.com.br/spmj/article/view/1388