1. Gell, P. H. G. & Coomds, R. R. A. (1963) Clinical Aspects of Immunology. Blackwell Scientific Publications, Oxford.
2. McConnell, R. B. (1965) Genetics and gastroenterology; pp. 4-5 in Badenoch, J. & Brooke, B. N. Recent Advances in Gastroenterology. Churchill, London.
3. Taylor, K. B. (1965) Immune mechanisms in gastroenterology. In Badenoch, J. & Brooke, B. N. Recent Advances in Gastroenterology. Churchill, London.