1.
Iwuagwu F, Agu G, Azuamah Y, Okolie V. The effects of Vitamin A on tear break-up time of young adults. Jrnl Nig Opto Assoc. [Internet]. 2011 Mar. 14 [cited 2026 Sep. 28];10(1). Available from: https://www.ajol.info/index.php/jnoa/article/view/64431