REFERENCES
- Abrams, M. S. & Lerner, H. J. Dis. Colon Reet. 1971, 14. 431–434.
- Andersen, B. & Baden, H. Scand. J. Gastroent. 1971, Suppl. 9, 23–29.
- Ariel, I. M. N.Y. St. J. Med. 1972, 72, 1041–1044.
- Bacon, H. E. & Martin, P. V. Dis. Colon Reet. 1964, 7, 211–217.
- Baden, H., Andersen, B. & Risum, G. Scand. J. Gastroent. 1971, Suppl. 9, 177–180.
- Bengmark, S. & Hafström, L. Cancer 1969, 23, 198–202.
- Donegan, W. L., Harris, H. S. & Spratt, J. S., Jr. Arch. Surg. 1969, 99, 149–156.
- Jaffe, B. M., Donegan, W. L., Watson, F. & Spratt, J. S., Jr. Surg. Gynec. Obstet. 1968, 127, 1–11.
- Nielsen, J., Balslev, I., Fenger, H. J., Jensen, H.-E. & Kragelund, E. Acta chir. scand. 1973, 139, 479–481.
- Oxley, E. M. & Ellis, H. Brit. J. Surg. 1969, 56, 149–152.
- Rail, D. P. Cancer Res. 1969, 29, 2471–2474.
- Rankin, G. B., Brown, C. H. & Crile, G., Jr. Ann. Surg. 1965, 162, 156–159.
- Stearns, M. W., Jr. & Binkley, G. E. Cancer 1954, 7, 1016–1019.
- Watkins, E., Jr., Khazei, A. M. & Nahra, K. S. Surg. Gynec. Obstet. 1970, 130, 580–605.