INNS, H.D.E. Report on the Fourth International Symposium on Presbyopia Marrakech, Morocco, 5-10 June 1989. Canadian Journal of Optometry, [S. l.], v. 51, n. 4, p. 180–181, 2026. DOI: 10.65636/cjo.v51i4.7043. Disponível em: https://cjo-rco.ca/index.php/cjo/article/view/7043. Acesso em: 13 aug. 2026.