@article{articlef2601635,
title   = {Fetal tricuspid valve Doppler at 11–13 weeks and 6 days: reference values and reproducibility},
author = {Ninno, Milena Almeida Prado and Liao, Adolfo Wenjaw and Lamberty, Clarissa Oliveira and Miguelez, Javier and Zugaib, Marcelo},
year = {2010},
doi = {10.1002/pd.2556},
journal   = {Prenatal Diagnosis}
}