Shafiq, Muhammad, Najla Shore, Saqib Javaid, Rida Fatima, Nabiha Saeed, and Abdullah Shafiq. 2020. “Evaluation of Physical Fitness by Post Exercise Heart Rate Recovery in Relation to Body Composition in Medical Students”. Pakistan Journal of Physiology 16 (4):13-16. https://pjp.pps.org.pk/index.php/PJP/article/view/1277.