History of organ allograft Subjects with organ allograft requiring immunosuppression Patient with an organ allograft Prior HCT (allograft or prior autograft) No prior organ allograft Receipt of an organ allograft. History of liver allograft; prior hepatic resection is allowed No history of organ allograft History of organ allograft, stem cells or bone marrow transplant Prior organ allograft Prior allograft or prior autograft Subjects required to take corticosteroids or other immunosuppressive therapy such as those with organ allograft Donor must provide a marrow allograft. However, abnormalities of specific organs will not be considered grounds for exclusion if they are the result of the EBV+ malignancy or its treatment (e.g. a renal allograft recipient with an EBVLPD may be on dialysis because the allograft was rejected when the immune suppression was stopped as a first approach to treatment of the EBVLPD); a the discretion of the investigator, patients with elevated but stable creatinine will not be precluded from treatment on study Prior organ allograft or allogeneic transplantation. History of organ allograft or other history of immunodeficiency Prior organ allograft or allogeneic transplantation Prior organ allograft or allogeneic transplantation, if the transplanted tissue is still in place Prior organ allograft or allogeneic transplantation, if the transplanted tissue is still in place Patients who are not candidates for or have declined an allograft Patients may have failed prior allograft Prior organ allograft or allogeneic transplantation, if the transplanted tissue is still in place No known prior organ allograft or allogeneic transplantation Have had organ allograft or hematopoietic transplantation. Subject has a history of organ allograft including liver transplant. Subjects with organ allograft requiring immunosuppression Organ transplant (allograft) recipient Organ transplant (allograft) recipient Prior organ allograft or allogeneic transplantation, if the transplanted tissue is still in place Patients must not have an organ allograft or other history of immune compromise Subjects with organ allograft requiring immunosuppression Subjects with organ allograft requiring immunosuppression History of organ allograft History of organ allograft Prior splenectomy or organ allograft History of organ allograft Patient with an organ allograft History of organ allograft History of organ allograft. Organ transplant (allograft) recipient reconstruction to include structural allograft;