1. Division of Musculoskeletal Sciences, Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Hershey, Pennsylvania.
2. Department of Biomedical Engineering, Penn State College of Engineering, University Park, Pennsylvania.
3. Chemistry Department, Eberly College of Science, Pennsylvania State University, University Park, Pennsylvania.
4. Materials Science and Engineering, College of Earth and Mineral Sciences, Pennsylvania State University, University Park, Pennsylvania.
5. Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania.