Title: Coulerie P et al. Structure-activity relationship study of biflavonoids on the Dengue virus polymerase DENV-NS5 RdRp. Planta Med. 2013 Sep;79(14):1313-8.
Title: Li SH et al. Chemical constituents from Amentotaxus yunnanensis and Torreyayunnanensis. J Nat Prod. 2003 Jul;66(7):1002-5.