1. Center for Integrative Medicine, Chair of Theory in Medicine, Integrative and Anthroposophic Medicine, Faculty of Medicine, University of Witten/Herdecke, Gerhard-Kienle-Weg 4, 58313 Herdecke, Germany
2. Integrated Studies of Anthroposophical Medicine, University of Witten/Herdecke, Gerhard-Kienle-Weg 4, 58239 Herdecke, Germany
3. Chair of Eurythmy Therapy, Alanus University of Arts and Social Sciences, Villestraße 3, 53347 Alfter, Germany
4. College of Nursing, Wayne State University, 5557 Cass Aveune, Detroit, MI 48202, USA