LYLE, W.M. Headache. Canadian Journal of Optometry, [S. l.], v. 49, n. 1, 2021. DOI: 10.15353/cjo.v49i1.4540. Disponível em: https://openjournals.uwaterloo.ca/index.php/cjo/article/view/4540. Acesso em: 15 may. 2025.