1. School of Humanities and Social Science, Faculty of Education and Arts, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
2. Australian Research Centre in Complementary and Integrative Medicine, Faculty of Health, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
3. The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong
4. Health Sciences, RMIT University, P.O. Box 71, Bundoora, VIC 3083, Australia