11，Davidson TI;BodayWN.Factors influencing survival following of the upper end of the femur.Injury,1986;17:12
22，Davis TR.Et al:The timing of surgery for intertrochanteric femoralfractures.Injury,1988;19:244
33，Zuckermen JD,et al:Postoperative complications and mortality associated with operativedelay in older patients who have a fracture of the hip.J.Bone Joint Surg.1995;77A(10):1551
