@inproceedings{inproceedings43a4ba4e,
title   = {There an opiate receptor in the snail megalobulimus sanctipauli ?},
author = {Romero, Sônia Maria Brazil and Hoffmann, Anette and Menescal-de-Oliveira, Leda},
year = {1993},
booktitle   = {World Congress of Pain}
}