Raja Muhammad Taimoor Khan, Haroon Saleem, Shahid Anwar Bhatti, Muhammad Usman Sadiq, Muhammad Irfan Sadiq (2022) “Association of Severity of Diabetic Retinopathy with Levels of HbA1c”, Pakistan Journal of Medical & Health Sciences, 16(07), p. 790. doi: 10.53350/pjmhs22167790.