Aftab, Akhunzada Muhammad, et al. “NON ARTERITIC ANTERIOR ISCHEMIC OPTIC NEUROPATHY; DOES ANTICOAGULATION HELP?”. Journal of Ayub Medical College Abbottabad, vol. 28, no. 4, Dec. 2016, pp. 776-80, https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/111.