Jordi Rello1, Joan Sabater-Riera2. 1. Vall d'Hebron Institute of Research (VHIR), Barcelona, Spain; Clinical Research, CHU Nîmes, Nimes, France; Medicine Department, Universitat Internacional de Catalunya, Barcelona, Spain. Electronic address: jrello@crips.es. 2. Critical Care Department, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain.