KK, Oladigbolu, Abah ER, and Tanko P. “Willingness to Pay for Cataract Surgery in Pre-Operative Cataract Patients in Zaria: Community Ophthalmology”. Transactions of the Ophthalmological Society of Nigeria 2, no. 1 (April 4, 2023). Accessed November 21, 2024. https://tosn.org.ng/index.php/home/article/view/226.