Imposex of Conus betulinus and Conus vexillum Chemical constituents from Mentha haplocalyx Chemical constituents from seed cake of Paeonia ostii Chemical Constituents of Coleus carnosifolius Dunn. Studies on Chemical Constituents in Fruit of Eucalyptus globulus Histological studies on imposex of three marine prosobranchs Improvement of Paraffin Section Methods and Morphological Studies on Usnea betulina Research on HBV DNA inhibition of plasmid acute infection mouse with betulinic acid 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 Constituents of Chinese Traditional Drug Suan Zau Ren The Chemical Constituents of Duzhong (The Bark of Eucommia ulmoides Oilv.) RP-HPLC determination of betulinic acid in Callicarpa macrophylla Determination of 23-hydroxylbetulinic acid in 23-Hydroxylbetulinic Acid Injection by HPLC THE COIXOL AND BETULINIC ACID OF SCOPARIA DULCIS L. H2O2 Mediated Synthesis of Betulin in Cells of Betula platyphylla Induced by Fungal Elicitor Chemical constituents of Sabia parviflora Chemical constituents from whole herb of Lycopodium japonicum Isolation and Identification of Triterpenoid Compounds in Fruits of Chaenomeles lagenaria (Loisel.)Koidz. Studies on chemical constituents of hairy root of Cassia tora Effect of betulinic acid on proliferation,apoptosis,and cell cycle of human lymphoma cell line Raji Contents of Betulin and Betulinic Acid of Betula platyphylla in Huanglong Mountain 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 Influence of betulinic acid on proliferation, migration, cell cycle and apoptosis of pancreatic cancer cells Advances in studies on three pentacyclic triterpenoids and their derivatives against ADIS Chemical constituents from whole herb of Hedyotis scandens Chemical constituents from whole herb of Hedyotis scandens Studies onChemical Constituents from the Bark of Hibiscus syriacus L. Studies on the Chemical Constituents of Alyxia levinei Merr Advances in studies on betulin Studies on the Chemical Constituents of Bretschneidera sinensis Hemsl. EndEmic in China STUDIES ON THE CHEMICAL CONSTITUENTS OF THE BARK OF TETRACENTRON SINENSE Chemical constituents in stems with hooks of Uncaria sessilifructus Chemical constituents in barks of wild Phyllanthus emblica Chemical constituents from leaves of Cajanus cajan Chemical constituents of Sabia fasciculata 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 Studies on the Constituents from the Stems of Spatholobus suberectus Orthogonal test for optimizing extraction technique of betulinic acid in Semen Ziziphi Spinosae