Effects of Gaultheria yunnanensis on adjuvant arthritis in rats Studies on the Chemical Constituents of Yunnan Wintergreen (Gaultheria yunnaueusis)(I) Studies on the Chemical Constiuents of Yunnan Wintergreen Root (Gaultheria yunnanensis) (Ⅲ) Determination of Lignan Glycosides in the Roots of Gaultheria yunnanensis Rehd.by HPLC