Pharmacokinetic study on bufadienolides of bufalin, cinobufagin,and resibufogenin from Bufonis Venenum in rats in vivo Determination of resibufogenin and cinobufagin in MEIHUA DIANSHE PILL by RP-HPLC Determination of five active components in Venenum Bufonis from different habitats by HPLC LIU Dan, FENG Jian-fang Pharmacokinetic study on bufadienolides of bufalin, cinobufagin, and resibufogenin from Bufonis Venenum in rats in vivo Studies on Chemical Constituents of Bufo Siccus Studies on Percutaneous Alsorption of Venenuin Bufonis in Vitro Determination of content of resibufogenin in YATONG YILI PILL by tri-wavelength spectrophotometry Extracting technology of bufadienolides in Bufo Corium Determination of Resibufogenin and Cinobufagin in Venenum Bufonis by HPLC