title: Ceiling effect reduces the validity of the Diabetes Treatment Satisfaction Questionnaire.
authors.forename: F
authors.initials: F
authors.lastname: Pouwer
authors.forename: F J
authors.initials: FJ
authors.lastname: Snoek
authors.forename: R J
authors.initials: RJ
authors.lastname: Heine
mesh_terms: D015982:Bias; D003920:Diabetes Mellitus / Q000523:psychology* / Q000628:therapy*; D006801:Humans; D017060:Patient Satisfaction; D011795:Surveys and Questionnaires