1. Thompson RA, Asquith P, Cooke WT: Secretory IgA in the serum. Lancet 2: 517–519, 1969
2. Waldman RH, Mach JP, Stella MM, Rowe DS: Secretory IgA in human serum. J Immunol 105: 43–47, 1970
3. Thompson RA, Asquith P: Quantitation of exocrine IgA in human serum in healthy and disease. Clin Exp Immunol 7: 491–500, 1970
4. Brandtzaeg P: Human secretory immunoglobulins. V. Occurrence of secretory piece in human serum. J Immunol 106: 318–323, 1971
5. Thompson RA, Carter R, Stokes RP, Geddes AM, Goodall JAD: Serum immunoglobulins, complement component levels and autoantibodies in liver disease. Clin Exp Immunol 14: 778–783, 1973