TY - JOUR AU - Chalmers, J. AU - Ho, K. C. DO - doi:10.1302/0301-620X.52B4.667 UR - https://doi.org/10.1302/0301-620X.52B4.667 TI - GEOGRAPHICAL VARIATIONS IN SENILE OSTEOPOROSIS T2 - The Journal of Bone & Joint Surgery British Volume VL - 52-B IS - 4 PY - 1970 SP - 667 EP - 675 ER -