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Leroy Stevens, who discovered pluripotent embryonic stem cells in mice, has passed away at age 94.

Reprogramming cells within live mice yields a new type of induced pluripotent stem cell.

Preliminary data from human embryonic stem cell trials for two degenerative eye disorders are promising, but challenges remain for more complex tissues.

A new antibody cocktail can remove undifferentiated, tumor-forming cells from a mix of embryonic stem cells.