Departments of aPharmacy, Unit of PharmacoEpidemiology and PharmacoEconomics (PE2), University of Groningen
bInternal Medicine, Division of Nephrology
cEpidemiology, University Medical Centre Groningen (UMCG), Groningen, The Netherlands
dClinical Research Centre for Rare Diseases ‘Aldo e Cele Daccò’, Mario Negri Institute for Pharmacological Research, Bergamo, Italy
eUnit of Nephrology, Azienda Ospedaliera Ospedali Riuniti di Bergamo, Bergamo, Italy
Correspondence to Stefan Vegter, MSc, Department of Pharmacy, Unit of PharmacoEpidemiology and PharmacoEconomics (PE2), Antonius Deusinglaan 1, Groningen 9713 AV, The Netherlands
Tel: +31 50 363 8204; fax: +31 50 363 2772; e-mail: [email protected]
Received 11 November 2008 Accepted 6 July 2009