SEVERITY OF HEADACHE WITH DIGITAL EYE STRAIN AMONG CALL CENTRE AGENTS DUE TO PROLONG SCREEN TIME AND ITS IMPACT ON WORK PRODUCTIVITY. Frontier in Medical and Health Research, [S. l.], v. 3, n. 7, p. 111–131, 2025. Disponível em: https://fmhr.net/index.php/fmhr/article/view/1036.. Acesso em: 14 aug. 2026.