He is also a research associate of the Refugee Studies Centre, University of Oxford, and an associate of the China Centre for Health and Humanity at University College London. He has served as an external expert researcher and as a facilitator and rapporteur for the Traditional Medicine Unit of the Western Pacific Region Office of the World Health Organization and has conducted research on integrative medicine, health care systems, and health diplomacy in China, Cuba, Guatemala, and the Philippines and in post-Katrina New Orleans.