1.
Khan B, Sohail A, Faridi TA, Jan U, Zahid F, Parveen I. Relation between different grades of pterygium and amount of induced corneal astigmatism: Different grades of pterygium. PBMJ [Internet]. 2021 Oct. 14 [cited 2024 Nov. 24];4(2):59-63. Available from: https://pakistanbmj.com/journal/index.php/pbmj/article/view/74