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Kazakova OB, Giniyatullina GV, Yamansarov EY, Tolstikov GA. Betulin and ursolic acid synthetic derivatives as inhibitors of Papilloma virus. Bioorganic & Medicinal Chemistry Letters. 2010 Jul;20(14):4088–90. doi: 10.1016/j.bmcl.2010.05.083. |