Riera Guardia N, Castellsague J, Calingaert B, Varas-Lorenzo C, Fourrier-Reglat A, Nicotra F. The SOS Project: nonsteroidal anti-inflammatory drugs and upper gastrointestinal complications: meta-analysis of epidemiological studies. Poster presented at the 26th ICPE International Conference on Pharmacoepidemiology & Therapeutic Risk Management; August 2010. Brighton, UK. [abstract] Pharmacoepidemiol Drug Saf. 2010 Aug 24; 19(Suppl 1):S314.