@article{article920b14ce,
title   = {Is there an opiate receptors in the small megalobolumis sanotipauli ? action of morphine and naloxone},
author = {Romero, Sônia Maria Brazil and Hoffmann, Anette and Menescal-de-Oliveira, Leda},
year = {1994},
journal   = {Comparative Biochemistry Physiology}
}