sultan, sharjeel, et al. “Surgical Outcomes of Vitrectomy in Patients With Complications of Diabetic Retinopathy at a Tertiary Care Center”. Journal of Liaquat University of Medical & Health Sciences, vol. 20, no. 3, Oct. 2021, pp. 187-92, http://ojs.lumhs.edu.pk/index.php/jlumhs/article/view/520.