%0 Journal Article %A N. Zhang %T FORMATION MECHANISM OF THE CRESCENT SIGN IN OSTEONECROSIS OF THE FEMORAL HEAD %D 2012 %J Orthopaedic Proceedings %P 4-4 %V 94-B %N SUPP_VIII %R 10.1302/1358-992X.94BSUPP_VIII.ARCO2009-004 %U https://doi.org/10.1302/1358-992X.94BSUPP_VIII.ARCO2009-004 %K Research