Pre- and Postoperative Urea Levels in Open Heart Surgery: Assessment as a Risk Factor for Predicting Mortality - A Retrospective Analysis: Urea Levels and Mortality in Open Heart Surgery. SRINMED [Internet]. 09 Ocak 2025 [a.yer 16 Eylül 2025];1(3). Erişim adresi: https://srinmed.akademisyen.net/index.php/srinmed/article/view/24