Chemical constituents from whole herb of Hedyotis scandens Chemical constituents from whole herb of Hedyotis scandens Advances in studies on three pentacyclic triterpenoids and their derivatives against ADIS RP-HPLC determination of betulinic acid in Callicarpa macrophylla Studies on the Constituents of Chinese Traditional Drug Suan Zau Ren Chemical constituents from leaves of Cajanus cajan Study on preparation and in vitro transdermal penetration of betulinic acid ethosomes modified by sodium deoxycholate Research progress on pharmacological activities of betulinic acid Chemical constituents from leaves of Acanthopanax evodiaefolius THE COIXOL AND BETULINIC ACID OF SCOPARIA DULCIS L. Determination of 23-hydroxylbetulinic acid in 23-Hydroxylbetulinic Acid Injection by HPLC Studies on the Constituents from the Stems of Spatholobus suberectus Contents of Betulin and Betulinic Acid of Betula platyphylla in Huanglong Mountain Chemical constituents from Mentha haplocalyx Chemical constituents from seed cake of Paeonia ostii Isolation and Identification of Triterpenoid Compounds in Fruits of Chaenomeles lagenaria (Loisel.)Koidz. Effect of betulinic acid on proliferation,apoptosis,and cell cycle of human lymphoma cell line Raji Studies on Chemical Constituents in Fruit of Eucalyptus globulus Research on HBV DNA inhibition of plasmid acute infection mouse with betulinic acid Studies on chemical constituents of hairy root of Cassia tora Accumulative characteristics of triterpenoid precursor and different triterpenoid branch products in Betula platyphylla A new nortriterpenoid from Sambucus williamsii Comparison on quality of wild Ziziphi Spinosae Semen between marketed and produced in Tianjin Simultaneous quantification of nine constituents in Ziziphi Spinosae Semenby HPLC-MS Studies on non-alkaloid constituents from Ochrosia borbonica Chemical constituents from Paliurus ramosissimus Studies on the Chemical Constituents of Bretschneidera sinensis Hemsl. EndEmic in China Influence of betulinic acid on proliferation, migration, cell cycle and apoptosis of pancreatic cancer cells Orthogonal test for optimizing extraction technique of betulinic acid in Semen Ziziphi Spinosae