Huber A, Weiss W
Endoscopy. 1977 Mar;9(1):42-3. doi: 10.1055/s-0028-1098485.
Direct visualization of the inner anal orifice by means of coloscopic inversion in the ampulla recti eliminates one of the last "blind zones" in digestive endoscopy.
通过直肠壶腹内的结肠镜反转直接观察肛门内口,消除了消化内镜检查中最后一个“盲区”之一。