1. Internal Medicine Department, Coimbra Hospital and University Center, Coimbra, Portugal
2. Internal Medicine Department, Hospital of the Divine Holy Spirit, Angra do Heroismo, Portugal
3. Hematology Department, Coimbra Hospital and University Center, Coimbra, Portugal
4. Internal Medicine and Intensive Care Unit, Coimbra Hospital and University Center, Portugal
5. Intensive Care Unit, Coimbra Hospital and University Center and Faculty of Medicine of the University of Coimbra, Coimbra, Portugal