9Hornby R,Evane JG, Vardon V. Operative or conservative treatment for trochanteric fractures of the femur. A randomized epidemiological trial in elderly patients. J Bone Joint Surg (Br), 1989,71:619
10Elliott J, Beringer T, Kee F, et al. Predicting survival after treatment for fracture of the proximal femur and the effect of delays to surgery. J Clin Epidemiol, 2003, 56 (8): 788