title: Factor analysis of gastrointestinal symptoms.
authors.forename: W E
authors.initials: WE
authors.lastname: Whitehead
authors.forename: E W
authors.initials: EW
authors.lastname: Cook
authors.forename: E
authors.initials: E
authors.lastname: Taub
mesh_terms: D016000:Cluster Analysis; D003109:Colonic Diseases, Functional / Q000453:epidemiology*; D004415:Dyspepsia / Q000453:epidemiology*; D005163:Factor Analysis, Statistical; D006801:Humans