1. British Homeopathic Association, Hahnemann House, 29 Park Street West, Luton LU1 3BE, UK
2. Belgian Homeopathic Medicines Registration Commission, FAMHP, Rue Taille Madame 23, B-1450 Chastre, Belgium
3. School of Public Health and Community Medicine, University of Washington, Seattle, WA 98195, USA
4. Center for Integrative Complementary Medicine, Shaare Zedek Medical Center, Jerusalem, Israel
5. Royal London Hospital for Integrated Medicine, 60 Great Ormond Street, London WC1N 3HR, UK
6. Center for Integrative Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
7. Central Council for Research in Homeopathy, Department of AYUSH, Ministry of Health & Family Welfare, Government of India, New Delhi 110058, India
8. Boiron, 20 Rue de la Liberation, 69110 Sainte Foy-lès-Lyon, France
9. Department of Clinical Medicine, Universidade Federal de Uberlândia, Uberlândia, Brazil