1. R. Virchow, Cellular Pathology, J.B. Lippincott, Philadelphia (1863).
2. W.S. Halsted, The results of radical operations for the cure of carcinoma of the breast, Ann. Surg. 46, 1–19 (1907).
3. B. Fisher, N. Slack, D.L. Katrych, and N. Wolmark, Ten year follow-up of breast cancer patients in a cooperative clinical trial evaluating surgical adjuvant chemotherapy, Surg. Gynecol. Obstet. 140, 528–534 (1975).
4. H.E. Skipper, Combination Therapy, Booklet 13, Southern Research Institute, Birmingham, Alabama (December, 1974), p. 1.
5. I. Hellstrom, K.E. Hellstrom, and H.O. Sjogren, Serum mediated inhibition of cellular immunity to methylcholanthrene-induced murine sarcomas, Cell. Immunol. 1, 18–30 (1970).