TY - JOUR AU - Grossbard, GD DO - doi:10.1302/0301-620X.63B4.7298687 UR - https://doi.org/10.1302/0301-620X.63B4.7298687 TI - Hip pain during adolescence after Perthes' disease T2 - The Journal of Bone & Joint Surgery British Volume VL - 63-B IS - 4 PY - 1981 SP - 572 EP - 574 ER -