1. Department of Internal Medicine III; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
2. Julius-Bernstein-Institute of Physiology; Martin-Luther-Universität Halle-Wittenberg; Halle (Saale) Germany
3. Institute of Experimental and Clinical Pharmacology and Toxicology; University of Erlangen; Erlangen Germany
4. Chair of Geriatrics; Charité - Universitätsmedizin Berlin; Berlin Germany