Khattak, M. A., S. Khan, M. Naeem, S. Iqbal, and N. Saeed. “Complication Rate in Preliminary Experience in Phacoemulsification Cataract Surgery”. Journal of Postgraduate Medical Institute, vol. 27, no. 4, Oct. 2013, https://www.jpmi.org.pk/index.php/jpmi/article/view/1289.