1. Department of Psychosomatic Medicine and Psychotherapy, University Medical Center of the Johannes Gutenberg, University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
2. Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Ulm, 89075 Ulm, Germany
3. Department of Clinical Psychology, Psychotherapy and Psychoanalysis, Institute of Psychology, University of Klagenfurt, 9020 Klagenfurt am Wörthersee, Austria
4. Department of Ophthalmology, University Medical Center of the Johannes Gutenberg, University Mainz, 55131 Mainz, Germany
5. Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg University, 69117 Heidelberg, Germany
6. Division of Neonatology, Department of Pediatrics, University Medical Center of the Johannes Gutenberg, University Mainz, 55131 Mainz, Germany