@inproceedings{inproceedings9fc01106,
title   = {Use of surfactant is independently a predictive factor for grade IV intraventricular hemorrhage: a multicenter case-control trial},
author = {Martinez, Francisco Eulogio and Marba, Sérgio},
year = {2010},
booktitle   = {Annual Meeting of Pediatric Academic Societies (PAS)}
}