1. Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
2. Department of Surgery, West Virginia University, Morgantown, WV, USA
3. Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
4. Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
5. Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
6. Department of Bioengineering, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA