At the same time, doctors warn that acid in aspirin can cause bleeding in the stomach and intestines.

同时，医生们警告说，在阿斯匹林能引起胃和肠道内出血。

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Objective:To compare the efficacy of aprotinin with tranexamic acid on postoperative bleeding in cardiac patients operated under cardiopulmonary bypass.

目的：探讨抑肽酶与止血环酸对心脏直视术后出血的影响。

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This article reviews many method used in the treatment of newborn with upper gastrointestinal bleeding from inhibiting gastric acid secretion and bleeding and protecting gastric mucosa.

本文从抑制胃酸分泌、止血及保护胃黏膜的角度，分别综述了多种治疗新生儿上消化道出血的方法。

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At the same time, doctors warn that acid in aspirin can cause bleeding in the stomach and intestines.

VOA: special.2009.10.20

Esophagitis can also trigger esophageal bleeding or ulcers after frequent exposure of the esophagus to stomach acid.

FORBES: Be Cool About Heartburn