TY - STAND AU - F. de Vries AU - A. Cooper AU - S. Cockle AU - T. van Staa AU - C. Cooper BT - Osteoporos Int DO - 10.1007/s00198-009-0891-4 M1 - 12 PY - 2009 SP - 1989 EP - 98 T2 - Osteoporos Int TI - Fracture risk in patients receiving acid-suppressant medication alone and in combination with bisphosphonates VL - 20 SN - 0937-941x ER -