1. Department of Internal Medicine, Division of Invasive Cardiology, University of Szeged, Szeged, Hungary
2. Department of Invasive Cardiology, Medicala 1 Clinic, University of Medicine and Pharmacy “Iuliu Hatieganu”, Cluj-Napoca, Romania
3. Semmelweis University, Cardiac and Vascular Center, Budapest, Hungary
4. Bács-Kiskun County Hospital, Teaching Hospital of the Szent-Györgyi Albert Medical University, Kecskemét, Hungary