TY  - JOUR
AU  - Burwell, RG
DO  - doi:10.1302/0301-620X.60B1.627568
UR  - https://doi.org/10.1302/0301-620X.60B1.627568
TI  - Perthes' disease
T2  - The Journal of Bone & Joint Surgery British Volume
VL  - 60-B
IS  - 1
PY  - 1978
SP  - 1
EP  - 3
ER  -