"But a baby who has a defect in those brain stem circuits that use serotonin can't do that when challenged and they go on to die."

VOA: standard.2010.02.08

"We found that the babies who died of SIDS had abnormalities in serotonin in regions of the brain stem that control breathing and heart rate and blood pressure during sleep."

VOA: standard.2010.02.08

Barack Obama is clearly at odds with many conservatives, who oppose stem cell research on ethical grounds.

BBC: Another Bush policy overturned

It will take a more expansive definition of who teaches STEM, and when and how they teach it.

FORBES: We Need All Hands on Deck for Science Education

After 11 patients had been followed up for six months, it was found the seven who received stem cells plus G-CSF had improved heart function.

BBC: NEWS | Health | Stem cell heart repair 'doubts'