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Chemical constituents of stems and leaves of Salvia yunnanensis and their anti-angiogeneic activities New Triterpenic Glucoside from Beesia calthaefolia  (Maxim.) Ulbr. Native to China Four new triterpenoid saponins from Polygala crotalarioides Triterpenoid Saponins from Yellowflower Milkwort Root (Polygala arillata) Research progress in structure characteristic, spectral regularity, and bioactivity of barrigenol type triterpenoids Chemical constituents in Akebiae Fructus based on UFLC-Q-TOF/MS