1. Bastyr University Research Institute; Kenmore WA USA
2. University of Technology Sydney; Australian Research Center in Complementary and Integrative Medicine; Ultimo New South Wales Australia
3. Bastyr University; San Diego CA USA
4. McMaster University; Department of Clinical Epidemiology and Biostatistics; Hamilton ON Canada
5. The University of British Columbia; Faculty of Medicine; Vancouver BC Canada
6. Bastyr University; Kenmore WA USA
7. McMaster University; Division of Infectious Diseases, Department of Medicine; Juravinski Hospital and Cancer Center 711 Concession Street, Section G, Level 0, Room 12 Hamilton ON Canada L8V 1C3
8. Dalhousie University; Department of Community Health and Epidemiology; 5790 University Avenue Halifax NS Canada B3H 1V7