Drupal-Bibcite0<style face="normal" font="default" size="100%">A systematic overview of 13 randomised trials of non-steroidal anti-inflammatory drugs for the prevention of heterotopic bone formation after major hip surgery</style><style face="normal" font="default" size="100%">A systematic overview of 13 randomised trials of non-steroidal anti-inflammatory drugs for the prevention of heterotopic bone formation after major hip surgery</style>