1 Bone marrow transplantation, thymus transplantation and thymic factors in the treatment of congenital immune defficiency states.- 2 Intravenous immunoglobulin.- 3 The interferons.- 4 Antilymphocyte antibodies: polyclonal and monoclonal.- 5 Plasma exchange in immunotherapy.- 6 Immunotherapy with interleukin-2.- 7 Modifications of monoclonal antibody for immunotherapy.- 8 Immunological effects of blood transfusion.- 9 Cyclosporin.