1. Department of Pathology, Yale School of Medicine, New Haven, CT, U.S.A.
2. Yale Cancer Center, Yale School of Medicine, New Haven, CT, U.S.A.
3. Yale Center for Immuno-Oncology, Yale School of Medicine, New Haven, CT, U.S.A.
4. Yale Stem Cell Center, Yale School of Medicine, New Haven, CT, U.S.A.