Medicine: 60% Cured

Denied the use of human subjects, researchers make most of their cancer experiments on animals. One vicious type of animal cancer—"mouse sarcoma 180"—is highly resistant to such ordinary methods of treatment as radium and X-ray therapy. In very few cases does it dry up and disappear spontaneously. More important, mouse sarcoma 180 is a reliable subject on which to test the effectiveness of various treatments for human cancer.

Casting about for something new with which to attack mouse sarcoma 180. Dr. Richard Lewisohn of New York City's Mount Sinai Hospital decided to try...

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