@article{article839e1767,
title   = {Quantitative three-dimensional power doppler angiography: a flow-free phantom experiment to evaluate the relationship between color gain depth and signal artifact},
author = {Martins, Wellington de Paula and Raine-Fenning, N. J. and Ferriani, Rui Alberto and Nastri, Carolina Oliveira},
year = {2010},
doi = {10.1002/uog.7562},
journal   = {Ultrasound in Obstetrics and Gynecology}
}