TY - JOUR T1 - Spinal anesthesia in COVID-19 patients, more research is needed JO - Revista Brasileira de Anestesiologia A1 - Hashemi, Masoud A1 - Taheri, Mehrdad A1 - Aminnejad, Reza SN - 0034-7094 UL - 10.1016/j.bjane.2020.04.002 VL - 70 Y1 - 2020 PB - Brasil ER -