ACO, CAO. Letters to the Editor. Canadian Journal of Optometry, [S. l.], v. 42, n. 3, p. 1, 1980. DOI: 10.15353/cjo.v42i3.4115. Disponível em: https://openjournals.uwaterloo.ca/index.php/cjo/article/view/4115. Acesso em: 30 apr. 2025.