Cell Metab 2015 May;21(5):667-77
Center for Physiology and Pathophysiology, Institute of Vegetative Physiology, University of Köln, Köln 50931, Germany; Center for Molecular Medicine Cologne (CMMC), University of Köln, Köln 50931, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Köln 50674, Germany. Electronic address: