Variability in risk of gastrointestinal complications with individual non-steroidal anti-inflammatory drugs: results of a collaborative meta-analysis. - Henry,D.; Lim,L.L.; Garcia Rodriguez,L.A.; Perez Gutthann,S.; Carson,J.L.; Griffin,M..; Savage,R..; Logan,R..; Moride,Y..; Hawkey,C..; Hill,S..; Fries,J.T. (BMJ, 1996)