1. Diagnosticum Mülheim Mülheim Germany
2. Department of Cardiothoracic and Vascular Surgery, West German Heart and Vascular Center University Hospital Essen Essen Germany
3. Division of Cardiothoracic Surgery, Department of Surgery Prince of Wales Hospital Hong Kong
4. Institute of Cardiac and Aortic Disease SRM Institutes for Medical Science (SIMS Hospital) Chennai Tamil Nadu India
5. Austin Hospital Melbourne Victoria Australia
6. Department of Surgery Melbourne University Melbourne Victoria Australia
7. Department of Cardiac and Vascular Surgery University Medical Center Mainz Mainz Germany
8. Tem Innovations GmbH Munich Germany
9. SRM Institutes for Medical Science (SIMS Hospital) Chennai Tamil Nadu India