EKPENYONG, B.; IKPEME, B. Uptake Of Eye Care Services In University Of Calabar Teaching Hospital, Cross River State, Nigeria. Journal of the Nigerian Optometric Association, [S. l.], v. 15, n. 1, p. 24–27, 2010. DOI: 10.4314/jnoa.v15i1.55604. Disponível em: https://www.ajol.info/index.php/jnoa/article/view/55604. Acesso em: 5 nov. 2026.