1. Matsukura, S., West, C.D., Ichikawa, Y., Jubiz, W., Harada, G., and Tyler, F.H., J. Lab. Clin. Med. 77: 490, 1971.
2. Odell, W.D., and W.H. Daughaday, Principles of Competitive Protein Binding Assays: Lippincott, Phila., 1971, (see Miles, p. 24, and Korenman, Rodbard, p. 20l).
3. Goodfriend, T., in: Margoulies, M., and Greenwood, F. (eds.), Protein and Polypeptide Hormones, Excerpta Medica, Amsterdam, 1972, in press.
4. Weintraub, B.D., Kadesky, Y.M., Rosen, S.W., Clin. Res., 20: 444, 1972.
5. Weintraub, B.D., Rosen, S.W., Mc-Cammon, J.A., Perlman, R.L., Endocrinology (submitted).