@article{article32286e0b,
title   = {Radiographic evaluation of the effect of endotoxin (LPS) plus calcium hydroxide on apical and periapical tissues of dogs},
author = {Nelson Filho, Paulo and Leonardo, Mário Roberto and Silva, Léa Assed Bezerra da and Assed, Sada},
year = {2002},
journal   = {Journal of Endodontics}
}