1. Cancer Patient Survival, Report #5, DHEW Publication # (NIH) 77991
2. Cancer Statistics, CA 31:20–21, 1981
3. Moertel CG, Reitemeier RJ: Advance Gastrointestinal Cancer: Clinical Management and Chemotherapy. Harper and Row, New York, 1969, pp. 3–14
4. Nicolson GL, Brunson KW, Fidler U: Specificity of arrest, survival and growth of selected metastatic variant cell lines. Cancer Res 38:4105–4111, 1978
5. Post G, Doll J, Hart IR, Fidler IJ: In vitro selection of murine B16 melanoma variants with enhanced tissue-invasive properties. Cancer Res 40:1626–1633, 1980