EVALUATION OF RENAL CORTICAL ECHOGENICITY AND SERUM CREATININE CORRELATION ACROSS YOUNG AND ELDERLY GROUPS IN CKD PATIENTS. Pakistan Journal of Medical & Cardiological Review, [S. l.], v. 5, n. 2, p. 1503–1517, 2026. DOI: 10.66021/pakmcr950. Disponível em: https://pakjmcr.com/index.php/1/article/view/950. Acesso em: 7 may. 2026.