1. Faculty of Medicine, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
2. HCA Medical City Healthcare UNT-TCU Graduate Medical Education Program, Arlington, TX 76015, USA
3. Heart & Vascular Specialists of North Texas, Arlington, TX 76014, USA
4. Kreiskrankenhaus Rotenburg an der Fulda, 36199 Rotenburg an der Fulda, Germany
5. Faculty of Medicine, University of Brescia, 25121 Brescia, Italy
6. Seamen’s Branch, Department of Cardiology, Klaipeda University Hospital, 92288 Klaipeda, Lithuania
7. Thorndale Medical Clinic, D05 DX09 Dublin, Ireland
8. Abbott Northwestern Hospital, Minneapolis, MN 55407, USA
9. Minneapolis Heart Institute Foundation, Minneapolis, MN 55407, USA