Cleveland Clinic, USA
Heart Center Leipzig, Germany
Baku, Azerbaijan
Diakonie Klinikum, Jung-Stilling Germany
Maria Cecilia Hospital - GVM Cotignola, Italy
New York St Francis Hospital, USA
Memorial Bahcelievler Hospital, Istanbul
Medical Park Florya Hospital, Istanbul
Dr. Siyami Ersek Thoracic And Cardiovascular Surgery Education Research Hospital, Istanbul
Istanbul University – Cerrahpasa Cardiology Institution, Istanbul
Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Istanbul