1. Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Ulmenweg 18, 91054 Erlangen, Germany
2. Department of Cardiology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Ulmenweg 18, 91054 Erlangen, Germany
3. Department of Nephrology and Hypertension, Paracelsus Medical School, Nuremberg, Germany