1. Department
of Biomedical Engineering, University of California, Davis, California 95616, United States
2. Department
of Orthopaedic Surgery and Rehabilitation and Vanderbilt Center for
Bone Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
3. Tennessee
Valley Healthcare System, Department of Veterans Affairs, Nashville, Tennessee 37212, United States
4. Department
of Orthopaedic Surgery, School of Medicine, University of California, Davis, Sacramento, California 95817, United States