Wang, Zichun, "Li Shizhen". (Biology Edition), 1st ed. "Classics of Traditional Chinese Medicine." National Library of Medicine. 12 Jan. 2005. National Library of Medicine, National Institute of Health. 24 Apr. 2006 <https://web.archive.org/web/20060615082820/http://www.nlm.nih.gov/hmd/chinese/chinesehome.html>. "Tufts EBCAM." Tufts University. 09 Feb. 2006. Tufts University Medical School, New England School of Acupuncture. 24 Apr. 2006 <https://web.archive.org/web/20060415090909/http://www.tufts.edu/med/ebcam/eastAsianMed/transmissionThought2.html%3E.