1. Department of Psychosomatic Medicine and Psychotherapy; University Medical Hospital; Tübingen Germany
2. SymbioGruppe GmbH; Herborn Germany
3. Fachkliniken Wangen I.A., Children Rehabilitation Hospital for Respiratory Diseases, Allergies and Psychosomatics; Wangen I.A. Germany
4. Department of Psychology; Clemson University; Clemson South Carolina USA