%0 Journal Article %A ME Steinberg %A GD Hayken %A DR Steinberg %T A quantitative system for staging avascular necrosis %D 1995 %J The Journal of Bone & Joint Surgery British Volume %P 34-41 %V 77-B %N 1 %R 10.1302/0301-620X.77B1.7822393 %U https://doi.org/10.1302/0301-620X.77B1.7822393 %K