INHIBITION OF INFLUENZA A VIRUS INFECTIVITY AND RNA-DEPENDENT RNA POLYMERASE ACTIVITY BY ANDROGRAPHIS PANICULATA ETHANOL EXTRACT: Hang Ding, Xiaokai Chen, Weilie Ma and Zhizhen Zhang. (2021). The Southeast Asian Journal of Tropical Medicine and Public Health, 51(5), 686-695. https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/256 (Original work published 2020)