title: Practical Methods to Assess Chronic Constipation.
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, Daejeon, Korea.
authors.forename: Kyung Ho
authors.identifier: http://orcid.org/0000-0001-6661-3879
authors.initials: KH
authors.lastname: Song