@article{articlec42f72fd,
title   = {Three-dimensional Doppler evaluation of single spherical samples from the placenta: intra- and interobserver reliability},
author = {Martins, W. P. and Lima, J. C. and Welsh, A. W. and Araujo Jr., E. and Miyague, A. H. and Mauad Filho, Francisco and Raine-Fenning, N. J.},
year = {2012},
doi = {10.1002/uog.11076},
journal   = {Ultrasound in obstetrics and Gynecology}
}