Ullah, Ikram, et al. “ATRIAL FIBRILLATION AND STROKE PREVENTION PRACTICES IN PATIENTS WITH CANDIDACY FOR ANTICOAGULATION THERAPY”. Journal of Ayub Medical College Abbottabad, vol. 27, no. 3, Sept. 2015, pp. 669-72, https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/303.