title: [Methodological problems of questionnaire studies. A discussion of the scientific description when developing a questionnaire].
authors.forename: J
authors.initials: J
authors.lastname: Brodersen
authors.forename: H
authors.initials: H
authors.lastname: Torsen
mesh_terms: D006801:Humans; D008722:Methods; D011795:Surveys and Questionnaires / Q000592:standards