@article{articlecce390fc,
title   = {Detection of Porphyromonas gingivalis, Porphyromonas endodontalis, Prevotella intermedia, and Prevotella nigrescens in chronic endodontic infection},
author = {Tomazinho, Luiz Fernando and Avila-Campos, Mario Julio},
year = {2007},
doi = {10.1016/j.tripleo.2006.05.010},
journal   = {Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics}
}