Refractive Errors Due To Online Classes Among School Children During The Covid-19 Pandemic. Journal of Pharmaceutical Negative Results, [S. l.], p. 2620–2627, 2022. DOI: 10.47750/pnr.2022.13.S10.312. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/9157.. Acesso em: 24 jun. 2026.