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