1. Steiner, D. F. & Freinkel, N. (eds) Endocrine Pancreas. Handbook of Physiology Vol. 1 (Williams & Wilkins, Baltimore, 1972).
2. Cooperstein, S. J. & Watkins, D. (eds) The Islets of Langerhans. Biochemistry, Physiology, and Pathology (Academic, New York, 1981).
3. Ullrich, A. et al. Science 196, 1313–1319 (1977).
4. Villa-Komaroff, L. et al. Proc. natn. Acad. Sci. U.S.A. 75, 3727–3731 (1978).
5. Lomedico, P. et al. Cell 18, 545–558 (1979).