%0 Journal Article %A ME Blakemore %A MH Harrison %T A prospective study of children with untreated Catterall group 1 Perthes' disease %D 1979 %J The Journal of Bone & Joint Surgery British Volume %P 329-333 %V 61-B %N 3 %R 10.1302/0301-620X.61B3.479256 %U https://doi.org/10.1302/0301-620X.61B3.479256 %K