Rehman, Imaad ur, Samina Akhtar, Atif Rana, Uzair Latif, Hassan Saleem, and Miohammad Yousuf Chaudhary. 2014. “MRI in the Pre Operative Evaluation of Perianal Fistula”. Journal of Postgraduate Medical Institute 28 (3). https://jpmi.org.pk/index.php/jpmi/article/view/1600.