Hacettepe Üniversitesi Tıp Fakültesi, Altındağ, Turkey
Ankara Dışkapı Yıldırım Beyazıt Hastanesi, Ankara, Turkey
Ege Üniversitesi Tıp Fakültesi Hastanesi, İzmir, Turkey
Cardiovascular Department, Bergamo, Italy
University Medical Center of Johannes Gutenberg-University Mainz, Mainz, Germany
CardioVascular Center Frankfurt, Frankfurt, Germany
Medizinische Klinikum Coburg, Coburg, Germany
Pediatric Hospital no 2, Hochiminh city, Vietnam
IJN National Heart Institute, Kuala Lumpur, Malaysia