@article{articlef1127fff,
title   = {A comparative study of morphine treatment regimen prior to mating and during late pregnancy},
author = {Yim, A. J and Miranda-Paiva, C. M and Flório, Jorge Camilo and Oliveira, Cláudio Alvarenga de and Nasello, Antônia Gladys and Felicio, Luciano Freitas},
year = {2006},
doi = {10.1016/j.brainresbull.2005.09.014},
journal   = {Brain Research Bulletin}
}