@article{articleb66c433a,
title   = {Effects of naloxone treatment on memory - enhancing properties of post-training administration of substance p},
author = {Silva, M and Nogueira, P J C and Tomaz, C},
year = {1993},
doi = {10.1016/0166-4328(93)90026-m},
journal   = {Behavioural Brain Research}
}