TY - JOUR AU - Bos, CF AU - Bloem, JL AU - Bloem, RM DO - doi:10.1302/0301-620X.73B2.2005143 UR - https://doi.org/10.1302/0301-620X.73B2.2005143 TI - Sequential magnetic resonance imaging in Perthes' disease T2 - The Journal of Bone & Joint Surgery British Volume VL - 73-B IS - 2 PY - 1991 SP - 219 EP - 224 ER -