TY - STAND AU - C. Cooper AU - M. Steinbuch AU - R. Stevenson AU - R. Miday AU - N. Watts BT - Osteoporos Int DO - 10.1007/s00198-009-1003-1 M1 - 4 PY - 2010 SP - 569 EP - 77 T2 - Osteoporos Int TI - The epidemiology of osteonecrosis: findings from the GPRD and THIN databases in the UK VL - 21 SN - 0937-941x ER -