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

David Baptista Silva Pares^I; Angélia Iara Felipe Lima^II; Edward Araújo Júnior^I; Luciano Marcondes Machado Nardozza^I; Wellinton P. Martins^III; Antônio Fernandes Moron^I

DOI: 10.5935/1678-9741.20130078 Publish in: August 2 2025