Aspirin in patients undergoing noncardiac surgery. by Devereaux, P, Mrkobrada, M, Sessler, D, Leslie, K, Alonso-Coello, P, Kurz, A, Villar, J, Sigamani, A, Biccard, B, Meyhoff, C, Parlow, J, Guyatt, G, Robinson, A, Garg, A, Rodseth, R, Botto, F, Lurati Buse, G, Xavier, D, Chan, M, Tiboni, M, Cook, D, Kumar, P, Forget, P, Malaga, G, Fleischmann, E