Have prior allogeneic bone marrow transplantation or solid organ transplant Prior treatment with any anti-PD-1 or anti-PD-L1 antibody, prior allogeneic bone marrow transplantation, or prior solid organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients must not have undergone prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients must not have undergone prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with prior allogeneic bone marrow transplantation, double umbilical cord blood transplantation (dUCBT) or prior solid organ transplantation Prior allogeneic bone marrow or organ transplantation 7. Prior allogeneic bone marrow transplantation or prior solid organ transplantation; Prior organ allograft or allogeneic bone marrow transplantation Has had any prior allogeneic solid organ or bone marrow transplantation. Prior allogeneic SCT or solid organ transplantation Prior organ transplantation or allogeneic bone marrow transplantation. Prior allogeneic or autologous bone marrow or organ transplantation Prior allogeneic or autologous bone marrow transplantation or other solid organ transplantation. Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow transplantation or solid organ transplant for another malignancy in the past Participants must not have had prior organ allograft or allogeneic bone marrow transplantation MEDICATION-RELATED: Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation. Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior organ allograft or allogeneic bone marrow transplantation Prior allogeneic bone marrow transplantation or prior solid organ transplantation. (Atezolizumab-related exclusion) Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with a prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow or organ transplantation No prior allogeneic bone marrow or organ transplantation Patients with a prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow or organ transplantation Patient has history of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic or autologous bone marrow transplantation or other solid organ transplantation. Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation. Prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Subjects who have had solid organ or bone marrow transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Participants with prior bone marrow or solid organ transplantation. Prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow or solid organ transplantation Participants with prior allogeneic bone marrow transplantation or prior solid organ transplantation Participants with prior allogeneic bone marrow transplantation or prior solid organ transplantation Patient has a history of hematological malignancy within the last 5 years prior to study entry; prior allogeneic bone marrow transplantation or prior solid organ transplantation Had solid organ or bone marrow transplantation Prior allogeneic bone marrow or organ transplantation Prior allogeneic bone marrow transplantation or solid organ transplant Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow transplantation or prior solid organ transplantation Subjects who have had solid organ or bone marrow Transplantation. Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow or organ transplantation. Prior allogeneic bone marrow or organ transplantation Prior allogeneic bone marrow or organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow or organ transplantation Prior allogeneic bone marrow or organ transplantation Patient must not have had a prior allogeneic bone marrow or organ transplantation Prior allogeneic bone marrow or organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Patients with prior allogeneic solid organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow or organ transplantation Prior allogeneic bone marrow or organ Prior bone marrow or organ transplantation. Prior allogeneic bone marrow or organ transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow or solid organ transplantation Prior allogeneic bone marrow or organ transplantation Subjects may not have had prior organ allograft or allogeneic bone marrow transplantation Prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior organ allograft or allogeneic bone marrow transplantation Patients with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogeneic bone marrow or organ transplantation Prior allogeneic or autologous bone marrow transplantation or other solid organ transplantation. Participants with prior allogeneic bone marrow transplantation or prior solid organ transplantation Prior allogenic bone marrow transplantation or prior solid organ transplantation