Although virtually nothing is known about the causes of cancer, something is known about its geography; it seems to strike differently in different parts of the world. Last week, 20 cancer experts from eleven nations gathered in Oxford, England, to pool their existing knowledge of the geography of cancer and plan new expeditions to explore its unmapped territory.
North & South. Within the U.S. alone there are striking variations in the ravages of cancer, reported Dr. Harold F. Dorn, chief of the biometrics branch of the National Institutes of Health. U.S. women (except...
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