1. Department of Internal Medicine; General Hospital Murska Sobota; Murska Sobota Slovenia
2. Department of Cardiology; University of Hull; Kingston upon Hull UK
3. Department of Cardiology; Erasmus Medical Center, Thoraxcenter; Rotterdam The Netherlands
4. Department of Vascular diseases; University Medical Centre; Ljubljana Slovenia
5. University Hospital Zürich; Zürich Switzerland
6. Department of Cardiology; Hôpital Pitié Salpétrière; Paris France
7. Department of Medicine; Sahlgrenska University Hospital/Östra; Göteborg Sweden