REFERENCES
- Armitage, P. Statistical Methods in Medical Research. Blackwell Scientific Publications. London, 1971.
- Cowley, D. J., Baron, J. H., Hansky, J. & Korman, M. G. Brit. J. Surg. 1973. 60, 438–443.
- Elder, J. B. & Ganguli, P. C. Unpublished observations, 1974.
- Fordtran, J. S. & Walsh, J. H. J. din. Invest. 1973, 52, 645–657.
- Forrester, J. M. & Ganguli, P. C. J. Physiol. (Lond.) 1970, 211. 33P–35P.
- Ganguli, P. C. & Hunter, W. M. J. Pliysiol. (Lond.) 1972. 220. 499–510.
- Ganguli, P. C. & Elder, J. B. Unpublished observations, 1974.
- Gillespie, G., Elder, J. B., Gillespie, I. E., Kay, A. W. & Crean, G. P. Gastroenterology 1970. 59, 180–187.
- Hansky, J., Soveny, C. & Korman, M. G. Gastroenterology 1972, 63, 387–391.
- Hansky, J. & Korman, M. G. pp. 275–292 in Sircus, W. (ed.) Clinics in Gastroenterology. W. B. Saunders Company Ltd., London. 1973.
- Hubel, K. A. Gastroenterology 1966, 50. 24–28.
- Jaffe, B. M., McGuigan, J. E. & Newton, W. T. Surgery 1970, 68. 196–201.
- Kronborg, O. Scand. J. Gastroent. 1970. 5, 577–583.
- Piper, D. W. Gastroenterology 1960. 38. 616–621.
- Stadil, F. & Rehfeld, J. F. Scand. J. Gastroent. 1972, 7, 509–514.