NPR News: A nonprofit says preterm births are up in the U.S. — and it's not a partisan issue

A nonprofit says preterm births are up in the U.S. — and it's not a partisan issue
March of Dimes' annual report on infant and maternal health drops the U.S. from a C- to a D+, citing a 15-year high in the preterm birth rate. But it also offers some encouraging signs and solutions.

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