title: [Why and how to carry out studies of quality of life in gastroenterology?].
authors.forename: J M
authors.initials: JM
authors.lastname: Raymond
mesh_terms: D005767:Gastrointestinal Diseases; D006801:Humans; D011785:Quality Assurance, Health Care; D011788:Quality of Life; D011795:Surveys and Questionnaires