1. Second Department of Psychiatry, University of Athens, ‘ATTIKON’ University Hospital, 12462 Athens, Greece
2. Department of Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece
3. First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, 11527 Athens, Greece
4. Department of Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne University Hospital, CH‑1011 Lausanne, Switzerland
5. Paediatric Infectious Diseases Dept, Karolinska University Hospital, 171 77 Stockholm, Sweden
6. Department of Neurophysiology, South Tyneside and Sunderland NHS Foundation Trust, Sunderland SR47TP, UK
7. Department of Gynaecologic Oncology MITERA Hospital, 15123 Athens, Greece
8. 2nd Department of Propaedeutic Surgery, National and Kapodistrian University of Athens School of Medicine, 11527 Athens, Greece
9. Gastroenterology Department, Hygeia Hospital, 15123 Athens, Greece
10. Department of Dermatology, Luton and Dunstable University Hospital, Bedfordshire Hospitals NHS Foundation Trust, Luton LU4 0DZ, UK
11. Department of Medical Oncology, Metaxa Cancer Hospital, Pireas, 18537 Athens, Greece
12. King's College London, Institute of Psychiatry, Psychology and Neuroscience, London SE5 8AF, UK
13. Thornford Park, Elysium Healthcare, Berkshire RG19 8ET, UK
14. 3rd Department of Surgery, ‘AHEPA’ University Hospital, Aristotle University of Thessaloniki, Medical School, 54621 Thessaloniki, Greece
15. Laboratory of Clinical Virology, School of Medicine, University of Crete, 71003 Heraklion, Greece
16. Hematology and Medical Oncology, Department of Clinical Therapeutics, National and Kapodistrian University of Athens, School of Medicine, 11527 Athens, Greece
17. First Department of Psychiatry, University of Athens, ‘Eginition’ Hospital, 11528 Athens, Greece