Nguyen, Chi Hung, and Nam Trung Nguyen. “Modifying the Hemagglutinin Gene With the Packaging Signals to Improve the Ability of Replication in Eggs of IBT-RG02 Vaccine Virus Strain”. Vietnam Journal of Biotechnology 21, no. 4 (December 30, 2023): 637–643. Accessed November 22, 2024. https://vjs.ac.vn/index.php/vjbt/article/view/19661.