title: [Studies on a serum immunosuppressive factor in multiple myeloma].
mesh_terms: D006801:Humans; D007136:Immunoglobulins / Q000096:biosynthesis; D008213:Lymphocyte Activation; D007959:Lymphocyte Culture Test, Mixed; D009101:Multiple Myeloma / Q000097:blood* / Q000276:immunology; D009363:Neoplasm Proteins / Q000097:blood*
chemical_list: D007136:Immunoglobulins; D009363:Neoplasm Proteins; C030193:immunosuppressive acidic protein