TY - STAND AU - N. Davies AU - G. Smith AU - F. Windmeijer AU - R. Martin BT - Epidemiology DO - 10.1097/EDE.0b013e318289e024 M1 - 3 PY - 2013 SP - 352 EP - 62 T2 - Epidemiology TI - COX-2 selective nonsteroidal anti-inflammatory drugs and risk of gastrointestinal tract complications and myocardial infarction: an instrumental variable analysis VL - 24 SN - 1044-3983 ER -