@misc{miscd6b1df02,
title   = {A friendly and low-cost protocol combining oral letrozol and clomiphene for ovarian stimulation (COOL-COS): a pilot study},
author = {Nastri, C. O and Nóbrega, B. N and Navarro, Paula Andrea de Albuquerque Salles and Ferriani, Rui Alberto and Silva, Ana Carolina Japur de Sá Rosa e and Reis, Rosana Maria dos and Martins, Wellington de Paula},
year = {2015},
doi = {10.1002/uog.15278},
booktitle   = {World Congress on Ultrasound in Obstetrics and Gynecology}
}