@article{article7222d493, title = {A comparative study of the effects of morphine in the dorsal periaqueductal gray and nucleus accumbens of rats submitted to the elevated plus-maze test}, author = {Anseloni, Vanessa C. Z. and Coimbra, Norberto Cysne and Morato, Sílvio and Brandão, Marcus Lira}, year = {1999}, doi = {10.1007/s002210050896}, journal = {Experimental Brain Research} }