1. Department of Internal Medicine I, Medical University of Vienna, and Ludwig Boltzmann Institute for Homoeopathy, Vienna, Austria.
2. Core Unit of Medical Statistics and Informatics, Medical University Vienna, Vienna, Austria.
3. Interdisciplinary Homoeopathic Research Group, Austrian Pharmacists Association, Vienna, Austria.
4. Doctors Association for Classical Homoeopathy, Salszburg, Austria.
5. Doctors Association for Classical Homoeopathy, Salszburg, Austria
6. Austrian Society for Homoeopathic Medicine, Vienna, Austria.
7. Umbrella Organisation of Austrian Doctors, for Holistic Medicine, Vienna, Austria.
8. Interuniversity College for Health and Development, Graz, Austria.
9. The Center for Integrated Complementary Medicine, Shaare Zedek Medical Center, Jerusalem, Israel.