title: Graft Versus Host Diseases Presenting Endoscopically as a Tubular Structure Mimicking a Worm.
authors.affiliation: Division of Gastroenterology, Department of Medicine, University of Utah, Salt Lake City, Utah, USA.
authors.forename: Amer A
authors.initials: AA
authors.lastname: Alkhatib
authors.affiliation: Division of Gastroenterology, Department of Medicine, University of Utah, Salt Lake City, Utah, USA.
authors.forename: Maia M
authors.initials: MM
authors.lastname: Ahdab