1. NOVA Medical School, Centre for Integrated Research in Health, New University of Lisbon, Lisbon, Portugal
2. Research Unit of Clinical Epidemiology, Institute of Clinical Research, University of Southern Denmark, Centre for Clinical Epidemiology, Odense University Hospital, Odense, Denmark
3. Department of Intensive Care, São Francisco Xavier Hospital, CHLO, Lisbon, Portugal
4. Postgraduate Program of Internal Medicine, Federal University of Rio de Janeiro, (UFRJ), Rio de Janeiro, Brazil
5. Medical School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
6. D'Or Institute for Research and Education, Rio de Janeiro, Brazil