DOI: 10.1055/s-00028781

The Surgery Journal

References

Malone FD, Canick JA, Ball RH. , et al; First- and Second-Trimester Evaluation of Risk (FASTER) Research Consortium.
First-trimester or second-trimester screening, or both, for Down's syndrome.

N Engl J Med 2005;
353 (19) 2001-2011

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