Harnavi, H., F. I. . Kurnia, and K. . Alexander. “Correlation of Serum Fibroblast Growth Factor 23 With Left Ventricular Diastolic Function in Chronic Kidney Patients”. Eduvest - Journal of Universal Studies, vol. 2, no. 9, Sept. 2022, pp. 1894-0, doi:10.59188/eduvest.v2i9.601.