MUHAMMAD MUNEEB; BACHA, Z. 20-20-20 rule: an effective method for coping with computer vision syndrome. Journal of the Pakistan Medical Association, [S. l.], v. 75, n. 10, p. 1683–1683, 2025. DOI: 10.47391/JPMA.30263. Disponível em: https://jpma.org.pk/index.php/public_html/article/view/30263. Acesso em: 23 may. 2026.