1. Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
2. Division of Cardiovascular Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
3. Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802, United States
4. Department of Mechanical & Materials Engineering, University of Nebraska, Lincoln, Lincoln, Nebraska 68588, United States
5. Department of Mechanical Engineering, University of Nevada, Reno, Reno, Nevada 89557, United States
6. Department of Biomedical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
7. Department of Materials Science and Engineering, Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802, United States
8. Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States