Kookanok, C., P. Rojndumronggarn, S. Charoensakulchai, R. Rangsin, and B. Sakboonyarat. “The Study of Association Between COVID-19 Pandemic and Blood Pressure Control Among Hypertensive Patients in Tha Luang Hospital, Lopburi Province, Thailand”. Greater Mekong Subregion Medical Journal, vol. 1, no. 3, Aug. 2021, pp. 115-24, https://he02.tci-thaijo.org/index.php/gmsmj/article/view/253073.