title: Mapping May Cause Straining: The Inconsistent Relationship Between A Disease- Specific Questionnaire (Pac-Qol) And Eq-5d Mapping In Constipation.
authors.affiliation: Vegter Health Economic Research, Amersfoort, The Netherlands.
authors.forename: S
authors.initials: S
authors.lastname: Vegter
authors.affiliation: BresMed, Sheffield, UK.
authors.forename: A J
authors.initials: AJ
authors.lastname: Hatswell