Cruz Llanos, L.E., Valenzuela Córdova, C.R., León Rabanal, C.P. and Cieza Zevallos, J.A. 2021. Hemoperfusion in critically ill patients with acute kidney injury. Report of three cases. Revista de Nefrología, Diálisis y Trasplante. 41, 1 (Mar. 2021), 48-54.