BROOKER, A. F. Ectopic ossification following total hip replacement. J. Bone Joint Surg., A. 1973, 69, 1629-1632
BRUCE, E. Heck. Direct complications of trochanteric osteotomy in open reduction and internal fixation of acetabular fractures. The American Journal of Orthopaedic. 1997, 26, 2, 124-128