1. World Health Organization. Available at: http://www.who.int/mediacentre/factsheets/factsheets/fs134/en/
2. A hundred questions on the Chinese culture;Jin,1999
3. Department for the Development of Thai Traditional and Alternative Medicine, Ministry of Public Health of Thailand. Report of 2005 the Integration of Thai Traditional Medicine in the National Health Care System.
4. Introduction of the world health organization project of the international classification of traditional medicine;Gao;J Chin Integr Med,2011
5. Committee for Terms in TCM. Available at: http://www.cttcm.com.cn/zyyjbmc01htm