1. Department of Biomedical Engineering University of Connecticut Health Center Farmington CT 06030 USA
2. Center for Comparative Medicine University of Connecticut Health Center Farmington CT 06030 USA
3. McCaig Institute for Bone & Joint Health University of Calgary Calgary AB T2N 4Z6 Canada
4. Department of Surgery University of Calgary Calgary AB T2N 1N4 Canada
5. US Army Institute of Surgical Research Fort Sam Houston Texas 78234 USA
6. Emergency Medicine Brown University Providence RI 02908 USA