07/19/2010 12:09 pm ET Updated May 25, 2011

Umbilical Cords Save Lives, But Nearly All Of Them Get Thrown Away

As their due date creeps closer, many pregnant women pack a go bag for the hospital: toothbrush, iPod, cute bringing-baby-home outfit. But in recent months, savvy mothers-to-be have started tucking in one more important item: a kit to collect and donate the blood in their babies' umbilical cord.

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