Chavarria, Nelson, et al. “PERSISTENT ELEVATION OF NEUTROPHIL LYMPHOCYTE RATIO ASSOCIATED WITH NEW ONSET ATRIAL FIBRILLATION FOLLOWING PERCUTANEOUS CORONARY INTERVENTION FOR ACUTE ST SEGMENT ELEVATION MYOCARDIAL INFARCTION”. Journal of Ayub Medical College Abbottabad, vol. 27, no. 2, June 2015, pp. 441-7, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/76.