Real-time polymerase Chain Reaction Quantification of Porphyromonas gingivalis and Tannerella forsythia in Primary Endodontic Infections - Saito, Daniel; Coutinho, Luiz Lehmann; Saito, Cristiane Pereira Borges; Tsai, Siu Mui; Höfling, José Francisco; Gonçalves, Reginaldo Bruno (Journal of Endodontics, 2009)