1. Lee Kong Chian School of Medicine; Imperial College and Nanyang Technological University; 3 Fusionopolis Link #06-13 Nexus@One-North South Tower Singapore 138543
2. National Center for Complementary and Alternative Medicine (NCCAM); Riyadh Saudi Arabia
3. Public Health; National Center for Complementary and Alternative Medicine, Riyadh (NCCAM); Riyadh Saudi Arabia
4. Medical Research Division; Korea Institute of Oriental Medicine; 461-24, Jeonmin-dong, Yuseong-gu Daejeon 305-811 South Korea
5. University of Exeter; Exeter Devon EX4 UK
6. Health Services and Outcomes Research Programme; Lee Kong Chian School of Medicine; Imperial College & Nanyang Technological University; 3 Fusionopolis Link #06-13 Nexus@One-North South Tower Singapore 138543