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UNITED STATES - MARCH 24: Embryologist Ric Ross places human embryos onto a petri dish at the La Jolla IVF Lab in La Jolla, California, U.S., on Tuesday, March 24, 2009. President Barack Obama earlier this month lifted restrictions on federal funding for embryonic stem-cell research and called on Congress to provide more money for such study to make the U.S. a leader in the field. (Photo by Sandy Huffaker/Bloomberg via Getty Images)

UNITED STATES - MARCH 24:  Embryologist Ric Ross places human embryos onto a petri dish at the La Jolla IVF Lab in La Jolla, California, U.S., on Tuesday, March 24, 2009. President Barack Obama earlier this month lifted restrictions on federal funding for embryonic stem-cell research and called on Congress to provide more money for such study to make the U.S. a leader in the field.  (Photo by Sandy Huffaker/Bloomberg via Getty Images)