1 Faculty of Medicine and University Hospital Cologne, Policlinic for Endocrinology, Diabetology and Preventive Medicine (PEPD), University of Cologne, Germany; Max Planck Institute for Metabolism Research, Cologne, Germany.
2 Department of Psychiatry, Psychotherapy and Psychosomatics, Goethe University Frankfurt, Germany.
3 Max Planck Institute for Metabolism Research, Cologne, Germany; Department of Psychiatry, Psychotherapy and Psychosomatics, Goethe University Frankfurt, Germany. Electronic address: EdwinThanarajah@med.uni-frankfurt.de.