ACC/AHA 2007 guidelines on perioperative cardiovascular evaluation and care for noncardiac surgery: Executive summary - Fleisher, La; Beckman, Ja; Brown, Ka; Calkins, H; Chaikof, E; Fleischmann, K E; Freeman, W K; Froehlich, J B; Kasper, E K; Kersten, J R; Riegel, B; Robb, J F; Smith, S C; Jacobs, A K; Adams, C D; Anderson, J L; Antman, E M; Buller, C E; Creager, Ma; Ettinger, S M; Faxon, D P; Fuster, V; Halperin, J L; Hiratzka, L F; Hunt, Sa; Lytle, B W; Nishimura, R; Ornato, J P; Page, R L; Riegel, B; Tarkington, L G; Yancy, C W (Anesth Analg, 2008)