1. Pinto, A.L., and Lippard, S.J. Biochim. Biophys. Acta 780:167–180, 1985.
2. Gale, G.R., Morris, C.R., Atkins, L.M., Smith, A.B. Cancer Res. 33:813–818, 1973.
3. Byfield, J.E. and Calabro-Jones, P.M. Nature 294:281–283, 1981.
4. Andrews, P.A., Kim, R.W., Murphy, M.P., and Howell, S.B. Proc. Am. Assoc. Cancer Res. 27:270, 1986.
5. Andrews, P.A., Murphy, M.P., and Howell, S.B. Proc. Am. Assoc. Cancer Res. 27:289, 1986.