The New England Journal of Medicine Downloaded from nejm.org on April 10, 2015. For personal use only. No other uses without permission. Copyright © 1991 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on April 10, 2015. For personal use only. No other uses without permission. Copyright © 1991 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on April 10, 2015. For personal use only. No other uses without permission. Copyright © 1991 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on April 10, 2015. For personal use only. No other uses without permission. Copyright © 1991 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on April 10, 2015. For personal use only. No other uses without permission. Copyright © 1991 Massachusetts Medical Society. All rights reserved.

The New England Journal of Medicine Downloaded from nejm.org on April 10, 2015. For personal use only. No other uses without permission. Copyright © 1991 Massachusetts Medical Society. All rights reserved.

Fetal fibronectin in cervical and vaginal secretions as a predictor of preterm delivery.

Preterm delivery is the leading cause of neonatal mortality in the United States, but efforts to address the problem are hampered by the inability to ...
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