Portrait Prof. Czerny (IMAGE) University of Freiburg Caption Prof. Dr Martin Czerny, Medical Director of the Department of Cardiovascular Surgery at the Medical Center - University of Freiburg, is one of the most cited cardiovascular surgeons in the world. Credit Medical Center - University of Freiburg / Britt Schilling Usage Restrictions Not allowed for advertisments and similar content License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.