Answer:
which one is it 9 42 or 12?
Answer:
i think it would be A (aka the first answer)
Explanation:
im sorry if im wrong
It is transplanted routinely to treat a variety of blood and bone marrow diseases, blood cancers, and immune disorders. More recently, stem cells from the blood stream (called peripheral blood stem cells) and umbilical cord stem cells have been used to treat some of the same blood-based diseases
