Anh, Vu Tuan, D’Esposito Fabrizio, Le Thi Thanh Xuan, Pham Trong Van Van, and Tran Thi Hoang Nga. “Survey of Refractive Errors in Secondary School and Refractive Errors Based- School Screening in Vietnam”. Open Access Macedonian Journal of Medical Sciences 10, no. E (September 30, 2022): 1911–1918. Accessed May 7, 2024. https://oamjms.eu/index.php/mjms/article/view/10273.