2. MacLaren R, Reynolds PM, Allen RR. Histamine-2 receptor antagonists vs proton pump inhibitors on gastrointestinal tract hemorrhage and infectious complications in the intensive care unit[J]. JAMA Intern Med, 2014, 174(4 ): 564-574.
3. Fennerty MB.Pathophysiology of the upper gastrointestinal tract in the critically ill patient: rationale for the therapeutic benefits of acid suppression[J]. Crit Care Med, 2002, 30 (suppl):351-355.