Isolation and purification of polymethoxylated flavonoids from Pericarpium Citri Reticulatae by high-speed counter-current chromatography Study of reason of "the older, the better" of Pericarpium Citri Reticulatae(PCR) which contributed increase of flavonoids Studies on Quantitative Determination of Total Flavonoid in Qingpi Zhiqiao and Zhishi by TLC-Densitometric Method Optimation of infiltration process of Pericarpium Citri Reticulatae in Huoxiang Zhengqi Liquid Determination of Hesperidin in Pericarpium Citri Reticulatae by HPLC Technological Studies of Effects of Inclusion on PericarpiumCitri Reticulatae Volatile Oil-beta-cyclodextrin Effects of Volatile oil of Rhizoma Zingiberis and other two kinds of volatile oil on percutaneous penetration of Bullatine A via hairless mouse skin in vitro Advances in studies on chemical constituents and pharmacologic effects of Pericarpium Citri Reticulatae Viride