1. Cardiology Department, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
2. Cardiology Department, Private Reyap Hospital, Istanbul, Turkey
3. Cardiology Department, Kosuyolu High Specialization Education and Research Hospital, Istanbul, Turkey
4. Cardiology Department, Istanbul Training and Research Hospital, Istanbul, Turkey
5. Cardiology Department, Mehmet Akif Ersoy Training and Research Hospital, Istanbul, Turkey
6. Department of Nephrology, Istanbul Training and Education Hospital, Istanbul, Turkey