1W. Dihlmann M.D.. CT analysis of the upper end of the femur: The asterisk sign and ischaemic bone necrosis of the femoral head[J] 1982,Skeletal Radiology(4):251~258
2W. Dihlmann M.D.. CT analysis of the upper end of the femur: The asterisk sign and ischaemic bone necrosis of the femoral head[J] 1982,Skeletal Radiology(4):251~258