title: What is functional disease and how do you measure it?
authors.forename: J
authors.initials: J
authors.lastname: Sweeting
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D004064:Digestive System / Q000503:physiopathology; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D005769:Gastrointestinal Motility; D006801:Humans; D008365:Manometry