1. Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, Ohio, USA.
2. Department of Biology, Case Western Reserve University, Cleveland, Ohio, USA.
3. Department of Center for Multimodal Evaluation of Engineered Cartilage, Case Western Reserve University, Cleveland, Ohio, USA.
4. Department of Skeletal Research Center, and Departments of Case Western Reserve University, Cleveland, Ohio, USA.
5. Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA.
6. Department of Orthopedics, Case Western Reserve University, Cleveland, Ohio, USA.