Eligibility to participate in the Research Sample Repository Protocol:  Hematopoietic Cell (HC) or Other Cellular Therapy Donors  Donors are eligible to participate in the Research Sample Repository if they have donated or are scheduled to donate HCs or cellular therapy products to an allogeneic recipient either by a marrow harvest or by apheresis. This includes adults with and without decision making capacity and children. All donors registered on the National Marrow Donor Program (NMDP) Registry, regardless of whether they have been requested to donate a product for a patient, are eligible to participate in the Research Sample Repository.  Cord Blood Units (CBUs)  Testable material from CBUs (Specimens) infused at treatment centers covered under the C. W. Bill Young Transplantation Program are eligible for inclusion in the Research Sample Repository. Material may be submitted by participating treatment centers, centralized laboratories and Cord Blood Banks.  Hematopoietic Cell Transplantation or Other Cellular Therapy Recipients  All U.S. recipients of allogeneic or autologous HC transplants or cellular therapies are eligible to participate in the Research Sample Repository. This includes adults with and without decision making capacity and children.  Patients with Marrow Toxic Injury  Any patient who is treated for a marrow toxic injury at a center participating in the NMDP's Radiation Injury Treatment Network (RITN) is eligible to participate in the Research Sample Repository. This includes adults with and without decision-making capacity and children. Eligible patients may have received support care only, growth factor support, hematopoietic stem cell transplant or other appropriate medical treatment for marrow toxic injury