1. Department of Cardiac Surgery, Sana Cardiac Surgery Stuttgart GmbH, Stuttgart, Germany
2. Department of Anatomy, Histology and Embryology, Laboratory for Applied and Clinical Anatomy, Semmelweis University, Budapest, Hungary
3. 2nd Department of Pathology, Semmelweis University, Budapest, Hungary
4. Department of Cardiac and Vascular Surgery, University of Debrecen, Debrecen, Hungary