Natural antibodies against tubulin, actin, myoglobulin, thyroglobulin, fetuin, albumin and transferrin are present in normal human sera and monoclonal immunoglobulins from multiple myeloma and Waldenström’s macroglobulinemia may express similar antibody specificities - Avrameas, S; Guilbert, B; Dighiero, G (Ann Immunol (Inst Pasteur), 1981)