Summer McKesson struggled to breathe for years. Doctors told her it was because her blood would not stop clotting – and they couldn’t figure out why. A single clot alone can be lethal; but the recurring and unexplained clots that formed in McKesson’s heart and lungs were a medical mystery. After multiple surgeries to remove clots and scar tissue, McKesson traveled to the Mayo Clinic, where she sat in a conference room while renowned physicians and specialists worked through her case on a

Tag-uri: DNA