Akpotuzor, JO, EC Akwiwu, and IA Udoh. “Prothrombin Time and Relative Plasma Viscosity of Hypertensive Patients Attending University of Calabar Teaching Hospital, Calabar, Nigeria”. International Journal of Natural and Applied Sciences 7, no. 2 (March 13, 2013): 130–132. Accessed October 15, 2026. https://www.ajol.info/index.php/ijonas/article/view/86479.