title: Opponent's comments.
authors.affiliation: International Renal Research Institute (IRRIV), San Bortolo Hospital, Vicenza, Italy.|Department of Nephrology Dialysis & Transplantation, San Bortolo Hospital, Vicenza, Italy.
authors.forename: Claudio
authors.initials: C
authors.lastname: Ronco
authors.affiliation: International Renal Research Institute (IRRIV), San Bortolo Hospital, Vicenza, Italy.|Department of Nephrology, University Hospital "Jose Eleuterio González", UANL, Monterrey, N.L, Mexico.
authors.forename: Lilia
authors.initials: L
authors.lastname: Rizo-Topete
authors.affiliation: International Renal Research Institute (IRRIV), San Bortolo Hospital, Vicenza, Italy.|Department of Nephrology, University Hospital "Marqués de Valdecilla", Santander, Cantabria, Spain.
authors.forename: Mara
authors.initials: M
authors.lastname: Serrano-Soto
authors.affiliation: Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA.|Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, USA.|Multidisciplinary Epidemiological and Translational Research in Intensive Care (METRIC) Team, Mayo Clinic, Rochester, MN, USA.
authors.forename: Kianoush
authors.initials: K
authors.lastname: Kashani