It's because the cancer is IN the marrow. it's no good to put fresh cancer-free marrow donation into the bone if cancer lurking there will just contaminate it immediately. So you need the chemo to kill ALL cancer (and most, if not all, of the marrow.) And then you replace it with donation marrow.
As I understand it. Heaven knows I am not an expert on this.
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Date: 2017-11-28 02:07 am (UTC)As I understand it. Heaven knows I am not an expert on this.