%0 Journal Article
%T Is There Etiologic Heterogeneity between Upper and Lower Neural Tube Defects?
%A Park, Christina H.
%A Stewart, Walter
%A Khoury, Muin J.
%A Mulinare, Joseph
%J American Journal of Epidemiology
%V 136
%N 12
%P 1493-1501
%@ 0002-9262
%D 1992-12-15
%I Oxford University Press
%~ DeepDyve