FDA approves blood test to detect colon cancer for those at ‘average risk’ ABC NewsF.D.A. Approves Blood Test for Colon Cancer Detection The New York TimesGuardant Health’s stock up as FDA approves blood test for colon-cancer screening MarketWatchGuardant Health’s Shield™ Blood Test Approved by FDA as a Primary Screening Option, Clearing Path for Medicare Reimbursement and a New Era of Colorectal Cancer Screening Business WireFDA approves new blood test to screen for colon cancer NBC News