1. Boring, C.C., Squaires, T.S., and Tong, T. (1991)CA-A Cancer J. Clinicians 2, 177–179.
2. Wynder, E.L., Kajitani, T., Ishikawa, S., Dodo, H., and Takano, A. (1969)Cancer 23, 1219–1240.
3. Burkitt, D.P. (1971)Cancer 28, 3–13.
4. Reddy, B.S., Hedges, A.T., Laakso, K., and Wynder, E.L. (1978)Cancer 42, 2832–2838.
5. Jain, M., Cook, G.M., Davis, F.G., Grace, M.G., Howe, G.R., and Miller, A.B. (1980)Int. J. Cancer 26, 757–768.