TY - JOUR AU - Helal, B. DO - doi:10.1302/0301-620X.52B2.402 UR - https://doi.org/10.1302/0301-620X.52B2.402 TI - Ultrastructure of Synovial Joints in Health and Disease T2 - The Journal of Bone & Joint Surgery British Volume VL - 52-B IS - 2 PY - 1970 SP - 402 EP - 403 ER -