1. Summary health statistics for U.S. adults: National Health Interview Survey. 2004. National Center for Health Statistics;Lethbridge-Cejku;Vital Health Stat.,2006
2. Summary health statistics for U.S. adults: National Health Interview Survey. 1997;Blackwell;Vital Health Stat.,2002
3. Diretrizes Brasileiras de Rinossinusites;Braz J Otorhinolaryngol.,2008
4. European position paper on rhinosinusitis and nasal polyps;Fokkens;Rhinol Suppl.,2012
5. Rhinosinusitis: Establishing definitions for clinical research and patient care;Meltzer;Otolaryngol Head Neck Surg.,2004