1 Department of Medicine D, Division of General Internal Medicine, Nephrology, and Rheumatology, University Hospital Münster, Münster, Germany. carolinchristina.drost@ukmuenster.de.
2 Institute of Physiology II, University Hospital Münster, Münster, Germany.
3 Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands.
4 Microvascular Health Solutions, Alpine, USA.
5 Department of Medicine D, Division of General Internal Medicine, Nephrology, and Rheumatology, University Hospital Münster, Münster, Germany.