| 题名 | Effects of aspirin and acetaminophen in gastrointestinal hemorrhage. Results from the Boston Collaborative Drug Surveillance Program |
| 作者 | Jick H |
| 杂志 | Arch Intern Med |
| 年|卷|期 | 1981 Feb 23;141(3 Spec No) |
| 页码 | 316-21 |
| 链接 | http://www.ncbi.nlm.nih.gov/pubmed/6970559 |
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