Gastrointestinal Bleeding in COVID-19 Patients: A Systematic Review with Meta-Analysis.
Canadian Journal of Gastroenterology and Hepatology（2021）
关键词
Upper Gastrointestinal Bleeding,Obscure Gastrointestinal Bleeding
AI 理解论文
溯源树
样例
生成溯源树，研究论文发展脉络
Chat Paper
正在生成论文摘要