1. Vascular Medicine Research, Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
2. Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
3. uzbonn – Gesellschaft für empirische Sozialforschung und Evaluation, Bonn, Germany
4. Medical Department APONTIS PHARMA Deutschland GmbH and Co. KG, Monheim, Germany