KK, O.; ER, A.; P, T. Willingness to Pay for Cataract Surgery in Pre-Operative Cataract Patients in Zaria: Community Ophthalmology. Transactions of the Ophthalmological Society of Nigeria, [S. l.], v. 2, n. 1, 2023. Disponível em: https://tosn.org.ng/index.php/home/article/view/226. Acesso em: 21 nov. 2024.