About the Authors

Efstratios I. Charitos

efstratios.charitos@gmail.com

Affiliation Department of Cardiac and Thoracic Vascular Surgery, University of Luebeck, Luebeck, Germany

Paul D. Ziegler

Affiliation Medtronic Inc., Minneapolis, Minnesota, United States of America

Ulrich Stierle

Affiliation Department of Cardiac and Thoracic Vascular Surgery, University of Luebeck, Luebeck, Germany

Derek R. Robinson

Affiliation Department of Mathematics, School of Mathematical and Physical Sciences, University of Sussex, Brighton, United Kingdom

Bernhard Graf

Affiliation Department of Cardiac and Thoracic Vascular Surgery, University of Luebeck, Luebeck, Germany

Hans-Hinrich Sievers

Affiliation Department of Cardiac and Thoracic Vascular Surgery, University of Luebeck, Luebeck, Germany

Thorsten Hanke

Affiliation Department of Cardiac and Thoracic Vascular Surgery, University of Luebeck, Luebeck, Germany

Competing Interests

Drs Charitos, Stierle, Graf, Robinson, and Sievers have no conflict of interest to disclose. Dr. Hanke has received modest lecture honoraria from Medtronic (<10.000 USD). Mr. Ziegler is an employee and stockholder of Medtronic (>10.000 USD). This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: EC PZ TH. Performed the experiments: EC PZ. Analyzed the data: EC PZ DR. Contributed reagents/materials/analysis tools: EC PZ US DR BG HS TH. Wrote the paper: EC PZ TH.