1. Institute of Integrative Medicine, University of Witten/Herdecke, Herdecke, Germany.
2. Change Health Science Institute, Berlin, Germany.
3. Institute for Homeopathic Research, Vienna, Austria.
4. Scientific Society for Homeopathy, Koethen, Germany.
5. Central Council for Research in Homeopathy (CCRH), Ministry of AYUSH, New Delhi, India.
6. Institute of Complementary and Integrative Medicine, University of Bern, Bern, Switzerland.