@misc{misca359a729,
title   = {Sympathetic activation by sildenafil into central nervous system in conscious rats},
author = {Fazan Júnior, Rubens and Silva, Carlos Alberto Aguiar and Carmo, Jussara Marcia do and Silva, Valdo José Dias da and Salgado, Hélio César},
year = {2006},
booktitle   = {Experimental Biology}
}