Association of radiographically evident osteoarthritis with higher bone mineral density and increased bone loss with age. The Rotterdam Study - Burger, H; van Daele, P L; Odding, E; Valkenburg, H A; Hofman, A; Grobbee, D E; Schutte, H E; Birkenhager, J C; Pols, H A (Arthritis Rheum, 1996)