title: Letter: Host inhibitory or blocking factor in subacute sclerosing panencephalitis.
mesh_terms: D000936:Antigen-Antibody Complex; D006801:Humans; D007111:Immunity, Cellular; D007136:Immunoglobulins / Q000032:analysis*; D013344:Subacute Sclerosing Panencephalitis / Q000097:blood / Q000276:immunology*
chemical_list: D000936:Antigen-Antibody Complex; D007136:Immunoglobulins