1Reis ND, Schwartz O, Militianu D,et al. Hyperbaric oxygen therapy as a treatment for stage-I avascular necrosis of the femoral head. J Bone Joint Surg Br, 2003, 85:371-375.
2Ficat RP.Idiopathic bone necrosis of the femoral head:early diagnosis and treatment.J Bone Joint Surg Br,1985,67: 3-9.