Teerasantipun, C., W. Pichetweerachai, T. Theerakul, W. Chaiwong, and C. Kunanusont. “Validity of Vision Screener Among Workers in a Private Hospital in the Northern Part of Thailand”. The Bangkok Medical Journal, vol. 15, no. 2, Sept. 2019, p. 140, doi:10.31524/bkkmedj.2019.09.002.