1. Atkin, N.B. and Ohno, S. (1967). ENA values of four primitive chordates. Chromosoma, 23, 10–13.
2. Bennett, D. (1975). The T-locus of the mouse. Cell, 6, 441–454.
3. Blundell, T.L. and Humbel, R.E. (1980). Hormone families: pancreatic hormones and homologous growth factors. Nature, 287, 781–787.
4. Bodmer, W.F. (1975). Analysis of linkage by somatic cell hybridization and its conservation by evolution. In Chromosame Variations in Human Evolution, (ed. A.J. Boyce). Taylor Francis, London.
5. Campbell, A.G.M., Rosenberg, L.E., Snodgrass, P.J. and Nuzum, C.T. (1973). Ornithine transcarbamylase deficiency: a cause of lethal neonatal hyperammonemia in males. New Eng. J. Med., 288, 1–6.