Biofilms in Chronic Rhinosinusitis with Nasal Polyps - Bezerra, Thiago Freire Pinto; Padua, Francini Grecco de Melo; Gebrim, Eloisa Maria Mello Santiago; Saldiva, Paulo Hilário Nascimento; Voegels, Richard Louis (Otolaryngology - Head and Neck Surgery, 2011)