Arif Ullah, Sidra Zafar, Usama Javaid, Aneeb Ashraf, Tahir Mahmood Khan, Saadullah Ahmad, “Impact of Preoperative Intravitreal Anti-VEGF on Vitrectomy for Proliferative Diabetic Retinopathy: A Prospective Study”, IJPRT, vol. 16, no. 1, pp. 2120–2125, May 2026.