Seen here is on colonoscopy are views of hemorrhoids at the anorectal junction.
Seen here is on colonoscopy are views of hemorrhoids at the anorectal junction.
肛门直肠交界处的痔疮的结肠镜检图。
Seen here is on colonoscopy are views of hemorrhoids at the anorectal junction.
肛门直肠交界处的痔疮的结肠镜检图。