New Prenatal Test May Be Less Risky Than Amniocentesis; Genetic Test In Pregnant Women's Blood May Detect Down Syndrome, Stanford University And Howard Hughes Medical Institute Researchers Say
WASHINGTON (Reuters) - A prenatal blood test can be used to determine if an unborn baby has Down's syndrome without the small risk to the fetus posed by invasive testing methods such as amniocentesis, U.S. researchers said on Monday.