aDepartment of Intensive Care, CHIREC Hospitals, Université Libre de Bruxelles, Brussels, Belgium

bDepartment of Intensive Care, Fundación Valle del Lili

cTranslational Research Laboratory in Critical Care Medicine (TransLab-CCM), Universidad Icesi, Cali, Colombia

Correspondence to Daniel De Backer, Department of Intensive Care, CHIREC Hospitals, Boulevard du Triomphe 201, B-1160 Brussels, Belgium. E-mail: [email protected]