Medicine: The Solution Was Clear

Some scientists' interest in cancer is more than scientific. Quiet, balding Pathologist Albert M. Harris was one of those. Day after day he worked in the laboratory of the Sioux Valley Hospital at Sioux Falls, S.Dak. His father, also a physician, had had cancer. Young Dr. Harris was looking for a quick and sure test for the disease.

The clue, he thought, lay in an enzyme called hyaluronidase, which exists in the testes, eyes, spleen, skin. He believed that it exists in large amounts in most cancers. He devised a urine test: the enzyme is extracted from the urine with ether, then...

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