Tangthongkum, S., and S. Ausayakhun. “Cytomegalovirus retinitis in non-HIV patients in Chiang Mai University Hospital”. Biomedical Sciences and Clinical Medicine, vol. 52, no. 3-4, Sept. 2023, pp. 65-72, https://he01.tci-thaijo.org/index.php/CMMJ-MedCMJ/article/view/87790.