REFERENCES
- Adams, J. T. Arch. Surg. 1973, 106, 678–682.
- Edwards, F. C. & Truelove, S. C. Gut 1964, 5, 1–15.
- Fiatmark, A., Freitheim, B. & Gjone, E. Scand. J. Gastroent. 1969, 4, 505–510.
- Garrett, J. M., Sauer, W. G. & Moertel, C. G. Gastroenterology 1967, 53, 93–100.
- Goligher, J. C., de Dombai, F. T., Watts, J. McK. & Watkinson, G. Ulcerative Colitis. Bailliere Tindall and Cassell, London, 1968.
- Jalan, K. N., Sircus, W., Card, W. I., McManus, J. P. A., Falconer, C. W. A., Small, W. P., Smith, A. N. & Bruce, J. Gastroenterology 1969, 57, 68–82.
- Kristensen, M., Koudahl, G., Fischerman, K. & Jarnum, S. Scand. J. Gastroent. 1974, 9, 177–183.
- Lumb, G., Protheroe, R. H. B. & Ramsay, G. S. Brit. J. Surg. 1956. 48, 182–188.
- McConnell, F., Hanelin, J. & Robbins, L. L. Radiology 1958, 71, 674–681.
- McElwain, J. W., Alexander, R. M. & Mac-Lean, M. D. Arch. Surg. 1965, 90, 133–138.
- Mclnerney, G. T., Sauer, W. G., Baggenstoss, A. H. & Hodgson, J. R. Gastroenterology 1962, 42, 244–256.
- Odyniec, N. A., Judd, E. S. & Sauer, W. C., Arch. Surg. 1967, 94, 638–642.
- Pcskin, G. W. & Davis, A. V. O. Surg. Gynec. Ohstet. 1960, 110, 269–276.
- Roth, J. L. A., Valdes-Dapena, A., Stein, G. N. & Bockus, H. L. Gastroenterology 1959, 37, 239–255.
- Sampson, P. A. & Walker, F. C. Brit. med. J. 1961. 11, 1 119–1123.
- Smith, F. W., Law, D. H., Nickel, W. F. & Schleisenger, M. H. Gastroenterology 1962, 42, 233–243.
- Thomford, N. R., Rybak, J. J. & Pace, W. G. Surg. Gynec. Ohstet. 1969. 128, 21–26.