The researchers suspect that the newborn c-section babies might be picking up their generic bacteria mix from the air - one way bacteria gets on our skin.

VOA: standard.2010.06.30

Take a knife and open up the skin and let's see what's inside.

用刀子切开皮肤,看看体内有什么

耶鲁公开课 - 生物医学工程探索课程节选

"If you happened to be a Taino who lived up in the mountains and you weren't in the sun a lot and maybe your skin was a little lighter, then they threw you in the 'white' bucket."

VOA: standard.2010.04.05