title: [Sigma elongatum and dolichosigma].
authors.affiliation: Department of Internal Medicine, Institute of Clinical Medicine, University of Tsukuba.
authors.forename: A
authors.initials: A
authors.lastname: Nakahara
authors.forename: H
authors.initials: H
authors.lastname: Kashimura
authors.forename: H
authors.initials: H
authors.lastname: Fukutomi
mesh_terms: D012809:Colon, Sigmoid / Q000002:abnormalities*; D006801:Humans