[Obstacles in the immunotherapy of cancer].
D000818:Animals; D000917:Antibody Formation; D001854:Bone Marrow Cells; D016026:Bone Marrow Transplantation; D006801:Humans; D007108:Immune Tolerance; D007122:Immunoelectrophoresis; D009369:Neoplasms / Q000276:immunology* / Q000628:therapy; D014181:Transplantation Immunology; D014184:Transplantation, Homologous