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ORIGINAL ARTICLE

Fetal heart assessment in the first trimester of pregnancy: influence of crown-rump length and maternal body mass index

David Baptista Silva ParesI; Angélia Iara Felipe LimaII; Edward Araújo JúniorI; Luciano Marcondes Machado NardozzaI; Wellinton P. MartinsIII; Antônio Fernandes MoronI

DOI: 10.5935/1678-9741.20130078

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