1 4th Department of Internal Medicine, National and Kapodistrian University of Athens, Medical School and Hellenic Institute for the Study of Sepsis, Athens, Greece. egiamarel@med.uoa.gr.
2 4th Department of Internal Medicine, ATTIKON University General Hospital, 124 62, Athens, Greece. egiamarel@med.uoa.gr.
3 Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
4 Department of Medicine and Surgery, University of Perugia, Perugia, Italy.
5 Critical Care Department, Saint-Louis Hospital and Paris Cite University, Paris, France.
6 Department of Pediatrics, Stanford University, School of Medicine, Lucile Packard Children's, Pao Alto, CA, USA.