1. Clinic for Internal Medicine, Department of Psychosomatic Medicine; Charité University Clinic; Berlin; Germany
2. Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy; Charité University Clinic; Berlin; Germany
3. Experimental and Clinical Research Center, a joint cooperation between the Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine; Charité University Clinic; Berlin; Germany