There are also two new protocols in the works involving the use of half - matched related donors. (cityofhope.org)
Although treatment for sickle - cell disease with marrow from related donors is now accepted as a standard of care, treatment with marrow taken from an unrelated donor is still evolving, reserved for only the most seriously sick patients. (discovermagazine.com)
Not without considerable misgivings, his friend complied, eventually finding a heart surgeon eager to attempt the transplant of a heart from a healthy and related donor not in extremis at the time of the operation. (firstthings.com)