1. Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
2. Department of Medicine (DIMED), Geriatric Clinic, University of Padua, Padua, Italy
3. Department of Physical and Rehabilitation Medicine, “Villa Salus” Hospital, Mestre, Italy
4. Division of Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
5. Department of Internal Medicine, Langeland Hospital, Zoetermeer, The Netherlands
6. Department of ENT, Head and Neck Surgery, Inselspital (University Hospital of Bern), University of Bern, Bern, Switzerland
7. Department of Radiology, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
8. Department of Otolaryngology–Head and Neck Surgery, Grenoble University Hospital, Grenoble, France
9. Department of Otolaryngology–Head and Neck Surgery, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
10. Department of Vascular Medicine and Haemostasis, University Hospitals Leuven, Leuven, Belgium
11. Department of Medicine and Ageing Sciences, University G. D'Annunzio of Chieti-Pescara, Chieti, Italy
12. Center for Thrombosis and Haemostasis, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
13. Department of Cardiology, Democritus University of Thrace, Alexandroupolis, Greece