title: Response to Zhang.
authors: Division of Gastroenterology & Hepatology, University of Missouri Health Sciences Center, Columbia, Missouri, USA.
authors: Matthew L
authors: ML
authors: Bechtold
authors: Division of Gastroenterology & Hepatology, University of Missouri Health Sciences Center, Columbia, Missouri, USA.
authors: Sameer
authors: S
authors: Siddique
authors: Division of Gastroenterology, University of California, Irvine, California, USA.
authors: Douglas L
authors: DL
authors: Nguyen
mesh_terms: D002400:Cathartics / Q000008:administration & dosage*; D003111:Colonic Polyps / Q000175:diagnosis*; D003113:Colonoscopy; D006801:Humans; D007552:Isotonic Solutions / Q000008:administration & dosage*; D011092:Polyethylene Glycols / Q000008:administration & dosage*
chemical_list: D002400:Cathartics; D007552:Isotonic Solutions; D011092:Polyethylene Glycols