title: Effect of mailed feedback on drug prescribing profiles in general practice: a seven-year longitudinal study in Storstrøm County, Denmark.
authors.affiliation: Uppsala University, Department of Public Health and Caring Sciences, Family Medicine and Clinical Epidemiology, Uppsala, Sweden. keld.vaegter@pubcare.uu.se
authors.forename: Keld
authors.initials: K
authors.lastname: Vægter
authors.forename: Rolf
authors.initials: R
authors.lastname: Wahlström
authors.forename: Hans
authors.initials: H
authors.lastname: Wedel
authors.forename: Kurt
authors.initials: K
authors.lastname: Svärdsudd