{Reference Type}: Journal Article {Title}: Ultrasound-guided technique versus ultrasound with nerve stimulation technique for obturator nerve block in transurethral resection of bladder tumors under spinal anesthesia: a meta-analysis. {Author}: Feng D;Wang Z;Yang Y;Li A;Wei W; {Journal}: Minerva Surg {Volume}: 76 {Issue}: 2 {Year}: 04 2021 暂无{DOI}: 10.23736/S0026-4733.20.08577-6 {Abstract}: