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确定消化道出血部位的一些有效方法如内窥镜血管造影术及剖腹术等往往会造成一定的损伤,并且不一定适合于所有的出血性疾病。有人提出用胃管来确定胃部是否出
Some effective methods to determine the site of gastrointestinal bleeding, such as endoscopic angiography and laparotomy, often cause some damage and may not be suitable for all bleeding disorders. Someone suggested that the stomach tube to determine whether the stomach