Sun, Q., P.-X. Shui, H.-B. Li, S.-J. Yang, M.-H. Liu, and S.-J. Zhang. “In Vitro Anti-Viral Effect of Fructopyrano-(1↠4)-Glucopyranose from Radix Isatidis on Infuenza Virus A”. Bangladesh Journal of Pharmacology, vol. 7, no. 3, July 2012, pp. 145-9, doi:10.3329/bjp.v7i3.11228.