Evolving spectrum but persistent high mortality of COVID-19 among patients on kidney replacement therapy in the vaccine era: the Spanish COVID-19 KRT Registry - Quiroga, Borja; Ortiz, Alberto; Cabezas-Reina, Carlos Jesus; Ruiz Fuentes, Maria Carmen; Jimenez, Veronica Lopez; Larrondo, Sofia Zarraga; Toapanta, Nestor; Gomez, Maria Molina; de Sequera, Patricia; Sanchez-Alvarez, Emilio;Spanish COVID-19 KRT Registry (Clinical Kidney Journal, 2022)