GÜNDOĞDU, Ünsal, and Öznur ASİL. “NT-ProBNP Determines Renal Dysfunction in Elderly and Middle-Aged Patients With Heart Failure”. Ejons International Journal on Mathematic, Engineering and Natural Sciences 4, no. 14 (June 12, 2020): 351–358. Accessed April 3, 2025. https://ejons.org/index.php/ejons/article/view/120.