Femoral Nerve Block Relieves Preoperative Pain in Elderly Patients with Femoral Neck Fracture - Jing ZHANG; Xuejian ZHANG; Tingting WANG; Shanshan NIE; Xuyue PAN; Yue TANG; Ling TANG (国际转化医学杂志（英文版）, 2019)
Keywords: Femoral neck fracture; pain; Elderly patients; Randomized controlled trial; Femoral nerve block