Angina treatment from patients' own adult stem cells

Patients were given shots to stimulate the production of blood stem cells, the cells were removed from their blood - not from a bone marrow biopsy - and then injected in areas of their hearts that were alive, but not functioning.
There's more information at ScienceDaily online.
While the researchers remind us that this is a "small pilot study," I'll bet the patients who went from having chest pain when walking across the room to being able to climb stairs don't feel that it was so small!