KANA, F., Ono, Y., CHHEANG, L., YUMA, O., YOUSUKE, N., TAKEUCHI, M., HIROTOSHI, K., Duyen, L., Hlaing, T. and Ngoan, L.T. 2020. The COVID-19 Pandemic in Chiba Prefecture, Japan and Viet Nam: A Lesson-learned in COVID-19 Pandemic Control in These Two Populations. Asian Pacific Journal of Environment and Cancer. 3, 1 (Oct. 2020), 49-53. DOI:https://doi.org/10.31557/apjec.2020.3.1.49-53.