1. Department of Human Biology and Human Genetics , University of Kaiserslautern , Erwin-Schrödinger-Str. 13, D-67663 Kaiserslautern , Germany
2. Department of Psychiatry and Psychotherapy , University Medical Center, Johannes Gutenberg-University Mainz , D-55131 Mainz , Germany
3. Department of Informatics and Microsystem Technology , University of Applied Sciences Kaiserslautern , D-66482 Zweibrücken , Germany