Treatment of knee osteoarthritis using steam-wash therapy with Haitongpi decoction: In comparison with Votalin Emulgel  
Wu Guang-wen, Zhang Yi, Lin Mu-nan, Hong Kun-da, Wu Ming-xia, Liu Xian-xiang
Chinese Journal of Tissue Engineering Research . 2010, (20): 3682 -3685 .  DOI: 10.3969/j.issn.1673-8225.2010.20.017