1. Department of Cardiology, University of Oslo, Ullevaal Hospital, Oslo, Norway;
2. Department of Hypertension and Diabetology, Medical University of Gdansk, Poland;
3. Service of Nephrology and Hypertension, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland;
4. Vascular Biology and Hypertension Program, Department of Medicine, University of Alabama at Birmingham, AL, USA