11.   When the team tested nitrogen mustard in a man whose lymphoma cancer had become resistant to radiation, the patient responded as well as the mouse.

12.   Prostate cancers became dangerous when they escaped from the organ and spread in the body.

13.   At the same time, however, lung cancer was becoming a steadily bigger problem for women, who began to quit smoking later than men did.

14.   Because of its slow growth and its usual onset late in life, most patients die of other causes before the cancer becomes a problem.

15.   Not being aggressive enough, however, can allow the cancer to become deadly.

16.   When Taxol, a drug made from the Pacific yew tree, was discovered with great fanfare a few years, ovarian cancer became one of its first targets.