1. Department of Orthopedics; University Medical Center Utrecht; Utrecht University; P.O. Box 85500 3508 GA Utrecht the Netherlands
2. Regenerative Medicine Center; University Medical Center Utrecht; Uppsalalaan 8 3584 CT Utrecht the Netherlands
3. Orthopaedic Biomechanics; Department of Biomedical Engineering; Eindhoven University of Technology; P. O. Box 513 5600 MB Eindhoven the Netherlands
4. Department of Cardiology; Experimental Cardiology Laboratory; University Medical Center Utrecht; Utrecht University; P. O. Box 85500 3508 GA Utrecht the Netherlands
5. Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute; University of Würzburg; Pleicherwall 2 97070 Würzburg Germany
6. Netherlands Heart Institute; P.O. Box 19258 3501 DG Utrecht the Netherlands
7. Department of Equine Sciences; Faculty of Veterinary Sciences; Utrecht University; Yalelaan 112 3584 CM Utrecht the Netherlands