VIEWS: 29 PAGES: 2 CATEGORY: Medicine POSTED ON: 5/22/2010
In 1980, before fertility drugs and newer technology were available, the incidence of twins births was about one in sixty, according to the 2005 National Vital Statistics Report from the Centers for Disease Control and Prevention. Elevated levels of serum alphafetoprotein and human chorionic gonadotropin (HCG) are clues to multiple births, and confirmation is obtained by ultrasound.
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