McKay and his colleagues used embryonic stem cells to create a particular type of neuron that can be used to treat a model of Parkinson's disease in mice.

FORBES: Magazine Article

Embryonic stem cells are "blank" or undifferentiated cells that can develop into any type of cell in the body.

CNN: NIH announces owners of stem cells

Embryonic stem cells, found only in embryos, are the only human cells that can divide to form any other type of tissue.

FORBES: The Scientist Who Helped Stall Stem Cell Research