The attributable mortality and length of intensive care unit stay of clinically important gastrointestinal bleeding in critically ill patients.
Cook DJ, Griffith LE, Walter SD, Guyatt GH, Meade MO, Heyland DK, Kirby A, Tryba M, Canadian Critical Care Trials Group. Crit Care. 2001 Dec; 5(6):368-75. Epub 2001 Oct 5.