Tbilisi Heart and Vascular Clinic, Tbilisi, Georgia
Israeli-Georgian Medical Research Clinic "Helsicore", Tbilisi, Georgia
Mount Sinai Hospital, New York, New York, United States
New York-Presbyterian Hospital/Columbia University Irving Medical Center, New York, New York, United States
OLV-Hospital Aalst, Belgium, Aalst, Belgium
Clinical Hospital Centre Zagreb, Zagreb, Croatia
Zemun Clinical Hospital Center, Belgrade, Serbia