临床表现 一、呕血(Hematemesis)与黑便(Melena)：特征性表现 上消化道出血后均有黑粪，不一定有呕血；有呕血者一般均有黑粪。 幽门以下部位出血一般只有?
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hematemesis and melena 呕血与黑粪 ; 呕血与黑便
Melena del Sur 南梅雷纳 ; 南梅莱纳
Melena of the Newborn 新生儿黑粪
Melena 3 days 黑便3天
melena vera 真性黑粪症
neonate melena 新生儿黑粪症
melena neonatorum 新生儿黑粪症
·2,447,543篇论文数据，部分数据来源于NoteExpress
He was febrile and jaundiced. However, no hematemesis or melena was noted.
他有发烧和黄疸的症状，但是并没有吐血或血便的症状。
After operation, we closely observe the vital signs, eating situation, abdominal pain and abdominal distention, nausea and vomiting, whether hematemesis and melena of patients.
术后密切观察患者生命体征，进食情况，腹痛腹胀，恶心呕吐，是否有呕血及黑便。
Results: the symptoms of these 20 patients were non-specific, upper abdominal pain was most common and hunger pain, abdominal distention, nausea, vomiting, melena being the next.
结果：20例患者的临床表现均无特异性，上腹疼痛最为常见，其次是饥饿痛、腹胀、恶心、呕吐、黑便等。
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