1. The Bone Tissue Engineering Center and Institute for Complex Engineered Systems, Carnegie Mellon University, Pittsburgh, Pennsylvania
2. The Bone Tissue Engineering Center; Institute for Complex Engineered Systems and Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
3. The Bone Tissue Engineering Center; Institute for Complex Engineered Systems; Department of Biomedical Engineering, and Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, Pennsylvania