1. Paediatric Intensive Care Unit Service Hospital Sant Joan de Déu University of Barcelona Barcelona Spain
2. Immunological and Respiratory Disorders in the Paediatric Critical Patient Research Group Institut de Recerca Sant Joan de Déu Hospital Sant Joan de Déu Barcelona Spain
3. Paediatric Emergency Transport Team Hospital Sant Joan de Déu Barcelona Spain
4. Paediatric Infectious Diseases Research Group Institut de Recerca Sant Joan de Déu Hospital Sant Joan de Déu CIBERESP Barcelona Spain
5. Department of Paediatrics Hospital Sant Joan de Déu University of Barcelona Barcelona Spain
6. Emergency Department Hospital Sant Joan de Déu University of Barcelona Barcelona Spain
7. Biochemistry Laboratory at the Hospital Sant Joan de Déu University of Barcelona Barcelona Spain