title: The annual tree ring sign: a new endoscopic finding of mucosal prolapse syndrome.
authors.affiliation: Department of Internal Medicine, Hiroshima City Hospital, Hiroshima, Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Ninomiya
authors.forename: Hirotoki
authors.initials: H
authors.lastname: Oh-E
authors.forename: Motowo
authors.initials: M
authors.lastname: Mizuno
mesh_terms: D000368:Aged; D003113:Colonoscopy / Q000379:methods*; D004396:Coloring Agents; D005260:Female; D006801:Humans; D007203:Indigo Carmine; D007413:Intestinal Mucosa / Q000473:pathology*; D011391:Prolapse; D012002:Rectal Diseases / Q000473:pathology*
chemical_list: D004396:Coloring Agents; D007203:Indigo Carmine