Hayat, Umar, et al. “TROPONIN-I POSITIVITY IN PATIENTS REFERRED TO RAPID ACCESS CHEST PAIN CLINIC”. Journal of Ayub Medical College Abbottabad, vol. 22, no. 4, Dec. 2010, pp. 3-5, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/2683.