ACO, CAO. Editorial: The Price of Freedom is Eternal Vigilance! (2). Canadian Journal of Optometry, [S. l.], v. 47, n. 4, 2021. DOI: 10.15353/cjo.v47i4.4453. Disponível em: https://openjournals.uwaterloo.ca/index.php/cjo/article/view/4453. Acesso em: 9 jul. 2024.