1. Woglom, W. H. (1947). In Moulton, F. R. (ed) General Review of Cancer Therapy, pp. 1–10. (Washington D.C.: American Association for the Advancement of Science)
2. Moolten, F. L. (1990). Mosaicism induced by gene insertion as a means of improving chemotherapeutic selectivity. Immunology, 10, 203–233
3. Clarkson, B. (1991). Retinoic acid in acute promyelocytic leukemia: The promise and the paradox. Cancer Cells, 3, 211–220
4. Coleman, C. N. (1988). Hypoxia in tumors: a paradigm for the approach to biochemical and physiological heterogeneity. J. Natl. Cancer Inst., 80, 310–317
5. Tannock, I. F. and Rotin, D. (1989). Acid pH in tumors and its potential for therapeutic exploitation. Cancer Res., 49, 4373–4384