He added that Tuesday 's advances in reprogramming cells would not have been possible without the advancements in embryonic stem cell research over the past decade . A scientist reprogramming human skin cells to act like embryonic stem cells . Warning : This is ` ` within ethical boundaries '' Bush : ` ` We need to continue to pursue all objectives ''
A scientist reprogramming human skin cells to act like embryonic stem cells . Warning : This is ` ` within ethical boundaries '' Bush : ` ` We need to continue to pursue all objectives ''