title: [Response rates for surveys is a challenge].
authors.forename: Frans Boch
authors.initials: FB
authors.lastname: Waldorff
authors.forename: Peter
authors.initials: P
authors.lastname: Lange
authors.forename: Ida
authors.initials: I
authors.lastname: Hageman
authors.forename: Thue
authors.initials: T
authors.lastname: Bisgaard
authors.forename: Bjarne Ørskov
authors.initials: BØ
authors.lastname: Lindhardt
authors.forename: Jacob
authors.initials: J
authors.lastname: Rosenberg
mesh_terms: D015982:Bias; D003625:Data Collection / Q000592:standards*; D006801:Humans; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*