ACO, CAO. Letters to the Editor. Canadian Journal of Optometry, [S. l.], v. 42, n. 1, p. 1, 1980. DOI: 10.15353/cjo.v42i1.4071. Disponível em: https://openjournals.uwaterloo.ca/index.php/cjo/article/view/4071. Acesso em: 20 may. 2024.