Preliminary study of effects and mechanisms of Qingpeng paste ontype II collagen-induced arthritis in rats Effects of triptolide on expression of heat shock proteins and major hiscompatibility-I molecule in synoviocytes and chondrocytes of collagen-induced arthritis rats Effect of paeoniflorin on level of glucocorticoid receptor of peripheral blood monocytes in rats of collagen-induced arthritis Comparative study of effect of Atractylodes lancea between geo-authentic and non-authentic producing areas on collagen-induced arthritis in rats