1. Cancer Institute; Department of Anesthesiology and Critical Care; Intensive Care Unit; School of Medicine; University of Sao Paulo; Sao Paulo; Brazil
2. Cancer Institute; Department of Nephrology; Intensive Care Unit; School of Medicine; University of Sao Paulo; Sao Paulo; Brazil
3. Department of Intensive Care; Erasme Hospital, Université Libre de Bruxelles; Brussels; Belgium