@article{articlee2003b30,
title   = {A secondary surge of prolactin on the estrus afternoon},
author = {Szawka, Raphael Escorsim and Anselmo-Franci, Janete Aparecida},
year = {2004},
doi = {10.1016/j.lfs.2004.01.027},
journal   = {Life Sciences}
}