We analyse 42 patients with analgesic ulcer followed by hemorrhage of upper digestive tract.

本文对42例无痛性溃疡合并上消化道出血患者进行分析。

youdao

We analyse 42 patients with analgesic ulcer followed by hemorrhage of upper digestive tract.

本文对42例无痛性溃疡合并上消化道出血患者进行分析。

youdao