Haq, I. ul; Fawad, A.; Saeed, M. K.; Humayun, S.; Islam, Q. ul; Arzoo, S.; Mashhadi, S. F. COMPARISON OF RAPID AND CONVENTIONAL CORNEAL COLLAGEN CROSS LINKING IN PATIENTS HAVING KERATOCONUS: Corneal Collagen Cross Linking. Pak Armed Forces Med J 2015, 65 (1), 105-109.