1. Kao ST, Chang CH, Chen YS, et al. Effects of Ding-Chuan-Tang on bronchoconstriction and airway leucocyte infiltration in sensitized guinea pigs. Immunopharmacol Immunotoxicol 2004;26(1):113–124.
2. Zhu Y-P, Woerdenbag HJ, Traditional Chinese herbal medicine. Pharm World Sci 1995; 17(4):103–112
3. A very good article on the differential diagnosis of pain according to Traditional Chinese Medicine is written by Giovanni Maciocia at http://www.giovanni-maciocia.com/articles/pain.html.
4. Ahmed S, Anuntiyo J, Malemud CJ, etal. Biological basis for the use of botanicals in osteoarthritis and rheumatoid arthritis: a review. Evid Based Complement Alternat Med 2005;2(3): 301–308.
5. Canter PH, Lee HS, Ernst E. A systematic review of randomised clinical trials of Tripterygium wilfordii for rheumatoid arthritis. Phytomedicine 2006;13(5):371–377.