00388nas a2200157   4500000000100000000000100001008004100002100001400043700001500057700001200072700001600084245009900100300001000199490000700209022001400216       2012                            d1 aD. Suissa1 aJ. Delaney1 aS. Dial1 aP. Brassard00aNon-steroidal anti-inflammatory drugs and the risk of Clostridium difficile-associated disease  a370-50 v74  a0306-5251