Was that last colonoscopy really negative? A surprising cause of rectal bleeding in a 75-year-old man.R Brooks Vance,Daniel Duncan,Evan S DellonGastroenterology(2012)引用 10|浏览7暂无评分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