1. Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
2. Vaccine and Immunotherapy Center, Wistar Institute, Philadelphia, PA 19104, USA.
3. Departments of Molecular and Cellular Physiology and Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.
4. Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA.
5. Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
6. Parker Institute for Cancer Immunotherapy at University of Pennsylvania, University of Pennsylvania, Philadelphia, PA 19104, USA.
7. Division of Hematology-Oncology, Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.