TY - CPAPER AU - Fransen M. BT - World Congress on Osteoarthritis CY - Prague, Czech Republic LA - eng LB - injuryconference PP - Prague, Czech Republic PY - 2006 T2 - World Congress on Osteoarthritis TI - HIPAID Collaborative Group. The safety and efficacy of routine perioperative NSAIDs prophylaxis for ectopic bone formation after hip replacement surgery. A randomised clinical trial ER -