1 Division of Clinical Neurobiology, Dysautonomia Center, Medical University, Anichstrasse 35, 6020, Innsbruck, Austria. Gregor.Wenning@i-med.ac.at.
2 Clinic and Policlinic for Psychiatry, Psychosomatics and Psychotherapy, University Hospital Wuerzburg, Margarete Hoeppel-Platz 1, 97080, Wuerzburg, Germany.