1. Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland
2. Department of Cardiology and Nephrology, Ullevaal Hospital, University of Oslo, Oslo, Norway
3. American Medical Association, University of South Carolina, Greenville, South Carolina, USA
4. Institute of Clinical Pharmacology and Toxicology, Universitatsmedizin Berlin Institut fur Medizin- Pflegepadagogik und Pflegewissenschaft, Berlin, Germany
5. Department of Nephrology, University of Lausanne, Lausanne, Switzerland