Zahid, Samina, Tahira Tasnim, and Muhammad Tayyab. “Activated Clotting Time (ACT): Its Diagnostic Value in Monitoring Low Dose Heparin Therapy”. Journal of Postgraduate Medical Institute 19, no. 1 (October 7, 2011). Accessed May 4, 2024. https://www.jpmi.org.pk/index.php/jpmi/article/view/971.