1. Steiner, D. F., Kemmler, W., Clark, J. L., Oyer, P. E. & Rubenstein, A. H. in Handbook of Physiology Sect. 7, Vol. 1 (eds Freinkel, N. & Steiner, D. F.) 175–198 (American Physiological Society, Washington, 1972).
2. Itoh, N. & Okamoto, H. FEES Lett. 80, 111–114 (1977).
3. Itoh, N., Nose, K. & Okamoto, H. Eur. J. Biochem. 97, 1–9 (1979).
4. Okamoto, H., Nose, K., Itoh, N., Sei, T. & Yamamoto, H. in Proinsulin, Insulin, and C-peptide (eds Baba, S., Kaneko, T., Rubenstein, A. H., Steiner, D. F. & Yanaihara, N.) 27–35 (Excerpta Medica, Amsterdam, 1979).
5. Itoh, N., Sei, T., Nose, K. & Okamoto, H. FEBS Lett. 93, 343–347 (1978).