@article{doi:10.1302/0301-620X.60B1.627568,
author = {Burwell, RG},
title = {Perthes' disease},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {60-B},
number = {1},
pages = {1-3},
year = {1978},
doi = {10.1302/0301-620X.60B1.627568},
url = {https://doi.org/10.1302/0301-620X.60B1.627568}
}