1. R. S. Yalow, Science, 200, 1236 (1978).
2. P. Tijssen, “Laboratory Techniques in Biochemistry and Molecular Biology, Practice & Theory of Enzyme Immunoassays,” Elsevier, Amsterdam, 1985.
3. K. Catt & G. W. Tregear, Science, 158, 1570.
4. D. J. Kesler & M. F. Gibson, Proc. IVth Int. Symp. Vet. Lab. Diag., 379 (1986).
5. E. R. Valle & D. J. Kesler, Proc. IVth Symp. Vet. Lab. Diag., 372 (1986).