[1] Beijing Univ Chinese Med, Affiliated Hosp 3, Beijing, Peoples R China
[2] China Acad Chinese Med Sci, Wangjing Hosp, Beijing, Peoples R China
[3] Beijing Univ Chinese Med, Grad Sch, Beijing, Peoples R China
[4] Guizhou Univ Tradit Chinese Med, Guizhou, Peoples R China
[5] Tufts Med Ctr, Div Rheumatol, Ctr Complementary & Integrat Med, Boston, MA 02111 USA