Many of the cancer cells accept 5-fluorouracil in place of the real thing, and cannot multiply.
So far advanced is the cancer that doctors ruled out surgery and radiation, instead gave Ruby regular intravenous doses of 5-fluorouracil, a drug that starves cancerous cells and .
On the average, one-fifth of all 5-fluorouracil patients with cancer of the large bowel, and a few with cancer of the liver or other organs, show worthwhile benefit.