cross section illustration of human anal column showing external and internal sphincters, and blood supply - 直腸 幅插畫檔、美工圖案、卡通及圖標肛門
cross section illustration of human anal column showing external and internal sphincters, healthy veins, and internal and external haemorrhoids causing inflammation of rectum and anus veins - 直腸 幅插畫檔、美工圖案、卡通及圖標
Illustration of endometriosis, and the organs infected by this disease. Endometriosis is the presence of the uterine lining outside the uterine...子宮內膜異位症, 插圖
Dr. Edmond F. Cohen, Denver Proctologist, says cancer of the colon and rectum will strike 73,000 Americans this year, more than any other type of...
