%0 Journal Article
%A AJ Hall
%A DJ Barker
%T Perthes' disease in yorkshire
%D 1989
%J The Journal of Bone & Joint Surgery British Volume
%P 229-233
%V 71-B
%N 2
%R 10.1302/0301-620X.71B2.2925740
%U https://doi.org/10.1302/0301-620X.71B2.2925740
%K