1. Department of Cardiology, Saint Petersburg State University, Saint Petersburg, Russian Federation
2. 1st Department of Internal Medicine, Faculty of Medicine, Comenius University and University Hospital, Bratislava, Slovakia
3. Royal Lancaster Infirmary, University Hospitals of Morecambe Bay NHS Trust, Lancaster, United Kingdom
4. Department of Nutrition, Faculty of Nursing and Professional Health Studies, Slovak Medical University, Bratislava, Slovakia
5. Department of General Medicine, Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
6. Faculty of Medicine, University of Oviedo, Central University Hospital of Asturias (HUCA), Oviedo, Spain
7. 2nd Department of Surgery, Faculty of Medicine, Masaryk University and St. Annés University Hospital, Brno, Czech Republic