advanced maternal age and twins

CDC reports on twin birth epidemic

A new report issued by the U.S. Department of Health and Human Services, Centers for Disease Control indicates a significant increase in the number of twins born to American women over the last thirty years. Currently, one in every 30 infants born in the U.S. is a twin, representing a 76% increase from 1980 through 2009. .

Infertility treatments and advanced maternal age...

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