[1
]
Center for Evidence-Based Medicine, Beijing University of Chinese Medicine, Beijing,
China.
[2
]
Department of Academic Exchange, World Federation of Chinese Medicine Societies, Beijing,
China.
[3
]
Center for Evidence-Based Medicine, Beijing University of Chinese Medicine, Beijing,
China. Electronic address: Liujp@bucm.edu.cn.
[4
]
Institute for Tibetan Medicine, China Tibetology Research Center, Beijing, China.
[5
]
School of Public Health, Hebei University, Baoding, Hebei, China.
[6
]
The National Research Center in Complementary and Alternative Medicine, NAFKAM, Department
of Community Medicine, Faculty of Health Science, UiT The Arctic University of Norway,
9037 Tromsø, Norway. Electronic address: terje.alrak@uit.no.