@article{doi:10.1302/0301-620X.71B5.2584244, author = {Joseph, B}, title = {Morphological changes in the acetabulum in Perthes' disease}, journal = {The Journal of Bone & Joint Surgery British Volume}, volume = {71-B}, number = {5}, pages = {756-763}, year = {1989}, doi = {10.1302/0301-620X.71B5.2584244}, url = {https://doi.org/10.1302/0301-620X.71B5.2584244} }