Photographer: Win McNamee/Getty Images

Bezos, Gates Chase Dream of a Blood Test That Detects Cancer

  • Dozens of companies racing to develop `liquid biopsies'
  • Myriad benefits for patients but many hurdles remain

If cancer is an unwelcome intruder in the body, it’s also a careless vandal, leaving traces of its presence sprinkled throughout the blood. And if you believe Jeff Bezos and Bill Gates, therein lies both a medical revolution and a pot of gold.

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