1. Cawson RA, Scully C and Yap PL: Aids to immunology. New York, John Wiley, 1986.
2. Oettgen HF, Hellstrom KE: Tumor immunology. In: Holland JF, Frei E (eds) Cancer medicine. Philadelphia, Lea and Febiger, 1982, pp 1029–1067.
3. Old LJ: Cancer immunology: the search for specificity. Cancer Res 41:361–375, 1981.
4. Toto PD: Fluorescent antibody detection of CEA in oral squamous carcinoma. J Oral Med 34:45–46, 1979.
5. Meeker WR, Kashmiri R, Hunter L, Clapp W, Griffen WO: Clinical evaluation of carcino-embryonic antigen test. Arch Surg 107:266–274, 1973.