Ranković-Ničić, Ljiljana, Dragana Unić-Stojanović, Maja Milošević, Slobodan Mićović, Tjaša Ivošević, Milica Stojicic, and Petar Otašević. “Predictors of Early Deterioration of Renal Function in Patients Older Than 70 Years Undergoing Valvular Surgery”. The Heart Surgery Forum 25, no. 2 (March 17, 2022): E196-E203. Accessed October 6, 2024. https://journal.hsforum.com/index.php/HSF/article/view/4387.