hemorrhage of digestive tract的用法和樣例：
例句
- Endoscopic ther-apy is the corn-erstone in modern therapy of acute upper digestive tract hemorrhage.
內鏡治療是急性上消化道出血現代治療的基礎。 - Selective superior mesentery angiography might be performed as a routine examination method in the difficult diagnosis of gastro-intestinal hemorrhage.
對診斷困難的消化道出血，選擇性腸系膜上動(dòng)脈造影可作為常規檢查方法。
