1. Department of Obstetrics & Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41500 Larisa, Greece
2. Hellenic National Public Health Organization-ECDC, Marousi, 15123 Athens, Greece
3. Department of Midwifery, School of Health Sciences, University of Western Macedonia, 50100 Kozani, Greece
4. Department of Obstetrics & Gynaecology, Faculty of Medicine, School of Health Sciences, University of Patras, 26504 Patras, Greece
5. Second Department of Dermatology-Venereology, Aristotle University School of Medicine, 54124 Thessaloniki, Greece
6. Department of Paediatrics, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41500 Larisa, Greece
7. Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41500 Larisa, Greece