stem-cell research and called on Congress ......such study to make the U.S a leader in the field..

Embryologist Ric Ross works with a human embryo using a video feed from a microscope at the La Jolla IVF Lab in La Jolla, California, U.S.,

Human embryos on a petri dish are viewed through a microscope at the La Jolla IVF Lab in La Jolla, California, U.S., on Tuesday, March 24, 2009.

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.

Embryologist Ric Ross takes out a vial containing frozen human embryos from a liquid nitrogen tank 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.