@article{article1d7bc77c,
title   = {What is the role of routine ultrasonography performed in the first trimester of low-risk pregnancy?},
author = {Simões, Ricardo dos Santos and Bernardo, Wanderley M},
year = {2017},
doi = {10.1590/1806-9232.63.01.4},
journal   = {Revista da Associação Médica Brasileira}
}