1. Tufts UniversityDepartment of Chemical and Biological EngineeringBioengineering Center4 Colby StreetMedfordMassachusetts
2. University Hospital BaselDepartment of SurgeryResearch Division4031BaselSwitzerland
3. Harvard Medical SchoolCenter for Technology and EngineeringBostonMassachusetts
4. New England Medical CenterDepartment of OrthopaedicsBostonMassachusetts
5. Massachusetts Institute of TechnologyDivision of Health Sciences and TechnologyCambridgeMassachusetts