%0 Journal Article
%T Four‐marker serum screening for Down's syndrome
%A Wald, N. J.
%A Densem, J. W.
%A Smith, D.
%A Klee, G. G.
%J Prenatal Diagnosis
%V 14
%N 8
%P 707-716
%@ 0197-3851
%D 1994-08-01
%I Wiley Subscription Services, Inc., A Wiley Company
%~ DeepDyve