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Expectant mothers can find out if their babies have Down syndrome or other genetic abnormalities with a simple blood test as early as 10 weeks into their pregnancy. But, the story says, the tests are not regulated by the Food and Drug Administration, and questions remain about a technology whose accuracy and role are still being assessed. As a result, no major insurance company has yet agreed to cover the tests, whose list prices range up to $1,900.

Read the full story here.