Fig. 1From: Herbal formula Xian-Fang-Huo-Ming-Yin regulates differentiation of lymphocytes and production of pro-inflammatory cytokines in collagen-induced arthritis miceHPLC-ESI/MSn total ion chromatograms of XFHM processed by different methods. a The negative base peak MS spectrum, b the positive base peak MS spectrumBack to article page