1 Irell and Manella Graduate School of Biological Sciences, City of Hope National Medical Center, Duarte, CA, United States; Department of Immunooncology, City of Hope National Medical Center, Duarte, CA, United States.
2 Department of Immunooncology, City of Hope National Medical Center, Duarte, CA, United States.
3 Irell and Manella Graduate School of Biological Sciences, City of Hope National Medical Center, Duarte, CA, United States; Department of Immunooncology, City of Hope National Medical Center, Duarte, CA, United States; Department of Pediatrics, City of Hope Children's Cancer Center, Duarte, CA, United States. Electronic address: leo.wang@coh.org.