Chris had his blood retested four years after his lifesaving bone marrow transplant The donor rsquo s marrow had provided what was needed to cure him but had left a surprise the DNA in Chris rsquo blood was that of his donor not his own It makes sense really the goal of the procedure was to replace the weakened blood with a donor rsquo s healthy blood Yet even swabs of Chris rsquo cheeks lips and tongue showed the donor rsquo s DNA In some ways he rsquo d become someone else mdash though he retained his own memories outward
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