Cardiovascular and renal outcomes according to KDIGO stages of chronic kidney disease in the Spanish population: Insights from real-world evidence Rafael Santamaria, Carlos Escobar, Unai Aranda, Beatriz Palacios, Margarita Capel, Ignacio Hernández, Ana Cebrián, Roberto Alcázar, Manuel Gorostidi

Telomerase activity in patients with stage 2–5D chronic kidney disease Veysel Kidir, Ayse Aynali, Atila Altuntas, Salih Inal, Buket Aridogan, Mehmet Tugrul Sezer

Native vitamin D in pre-dialysis chronic kidney disease Mariana P. Cardoso, Luciano A.L. Pereira