%0 Journal Article %A E Ippolito %A C Tudisco %A P Farsetti %T The long-term prognosis of unilateral Perthes' disease %D 1987 %J The Journal of Bone & Joint Surgery British Volume %P 243-250 %V 69-B %N 2 %R 10.1302/0301-620X.69B2.3818755 %U https://doi.org/10.1302/0301-620X.69B2.3818755 %K