1. Tatemoto, K. & Mutt, V. Proc. natn. Acad. Sci. U.S.A. 75, 4115–4119 (1978).
2. Tatemoto, K. & Mutt, V. Scand. J. Gastroenterol 13, Suppl. 49, 181 (1978).
3. Dayhoff, M. O. in Atlas of Protein Sequence and Structure Vol. 5 (ed. Dayhoff, M. O.) D173–D227 (National Biochemical Research Foundation, Silver Spring, Maryland, 1972).
4. Hunt, L. T. & Dayhoff, M. O. in Atlas of Protein Sequence and Structure Vol. 5, Suppl. II (ed. Dayhoff, M. O.) 113–145 (National Biochemical Research Foundation, Silver Spring, Maryland, 1976).
5. Mutt, V. in Gut Hormones (ed. Bloom, S. R.) 21–27 (Churchill-Livingstone, Edinburgh, 1978).