Searching Blood for Cancer Clues
ONCE A MONTH, 40-year-old Kristen Kilmer drives nearly 400 miles from her home in Spearfish, South Dakota, to the Avera Cancer Institute in Sioux Falls. On some mornings, she leaves as early as 1:30 a.m. after kissing her sleeping 11-year-old daughter goodbye. Without traffic or inclement weather, it’s a six-hour haul from one side of the […]
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