1 Department of Intensive Care Medicine, Centre Hospitalier du Valais Romand de l'Hôpital du Valais, (Site de Sion) Avenue du Grand-Champsec 80, 1951, Sion, Switzerland.
2 Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland.
3 Department of Vascular Surgery, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.
4 Department of Laboratory Medicine and Pathology, Institute of Microbiology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
5 Department of Intensive Care Medicine, Centre Hospitalier du Valais Romand de l'Hôpital du Valais, (Site de Sion) Avenue du Grand-Champsec 80, 1951, Sion, Switzerland. bienvenido.sanchez@hopitalvs.ch.
6 Department of Intensive Care Medicine, Centre Hospitalier du Valais Romand de l'Hôpital du Valais, (Site de Sion) Avenue du Grand-Champsec 80, 1951, Sion, Switzerland. Julie.Delaloye@hopitalvs.ch.