Hans-Ulrich Wittchen (born 6 July 1951 in Bad Salzuflen) is a clinical psychologist, psychotherapist and epidemiologist. He has been a head of the Institute of Clinical Psychology and Psychotherapy and the Center of Clinical Epidemiology and Longitudinal Studies (CELOS) at the Technische Universität Dresden. Since 2018, he is leading the research group "Clinical Psychology and Psychotherapy Research" at the Psychiatric Clinic of Ludwig-Maximilians-Universität München and directs the IAP-TU Dresden GmbH in Dresden. Source: Wikipedia (en)