Thi Nga N, Thu HT, Hoa NT, Hien VT, Thu Trang N, Thanh Ba N, et al. Assessment of the genetic changes of the attenuated Hanvet1.vn strain compared with original virulent 02HY strain of the porcine reproductive and respiratory syndrome virus. Vietnam J. Biotechnol. [Internet]. 2022 Jun. 30 [cited 2025 Sep. 21];20(2):245-52. Available from: https://vjbt.vast.vn/vjbt/article/view/16677