REFERENCES
- Ament, M. E. & Rubin, C. E. (1972). Gastroenterology, 62, 216–226.
- Jones, E. G. & Brown, W. R. (1974). American Journal of Digestive Diseases, 19, 791–796.
- Mancini, G., Carbonara, A. O. & Heremans, J. F. (1965). International Journal of Immuno-chemistry, 2, 235–254.
- Papamichail, M., Holbrow, E. J., Keith, H. I. & Currey, H. L. F. (1972). Lancet, 2, 64–66.
- Quie, P. G., White, J. G., Holmes, B. & Good, R. A. (1967). Journal of Clinical Investigations, 46, 668–679.
- Ridley, M. J. & Ridley, D. S. (1976). Journal of Clinical Pathology, 29, 30–34.
- Vinayak, V. K., Jain, P. & Naik, S. R. (1978) Annals of Tropical Medicine and Parasitology, 72, 581–582.
- Wright, S. G. & Tomkins, A. M. (1977). Clinical and Experimental Immunology, 29, 408–412.
- Zinneman, H. H. & Kaplan, D. A. (1972). American Journal of Digestive Diseases, 19, 793–797.