1. Department of Plastic Surgery and Reconstructive Surgery, University Medical Centre Utrecht, Utrecht, Netherlands
2. Departments of Heart and Lungs, University Medical Centre Utrecht, Utrecht, Netherlands
3. Department of Cardiology, Amphia Hospital, Breda, Netherlands
4. Department of Plastic Surgery and Hand Surgery, Albert Schweitzer Hospital, Dordrecht, Netherlands
5. Department of Plastic Surgery and Reconstructive Surgery, Erasmus Medical Centre, Rotterdam, Netherlands
6. Department of Cardiology, Albert Schweitzer Hospital, Dordrecht, Netherlands