1. Department of Psychology and Psychotherapy, Witten/Herdecke University, Witten, Germany
2. Department of Psychology and Psychotherapy Integrated Curriculum for Anthroposophic Psychology (ICURAP), Witten/Herdecke University, Witten, Germany
3. Department of Psychology, University of Kent at Canterbury, Kent, United Kingdom
4. Department of Medicine, Integrated Curriculum for Anthroposophic Medicine (ICURAM), Witten/Herdecke University, Germany
5. Department of Medicine, Institute of Integrative Medicine, Witten/Herdecke University, Germany