5Ferguson BJ. Fungus balls of the paranasal sinuses. Otolaryngol Clin North Am, 2000, 33: 389-398.
6Nicolai P, Lombardi D, Tomenzoli D, et al. Fungus ball of the paranasal sinuses: experience in 160 patients treated with endoscopic surgery. Laryngoscope, 2009, 119: 2275-2279.
7Mensi M, Piccioni M, Marsili F, et al. Risk of maxillary fungus ball in patients with endodontic treatment on maxillary teeth: a case-control study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2007, 103: 433-436.
8Pagella F, Matti E, De Bernardi F, et al. Paranasal sinus fungusball: diagnosis and management. Mycoses, 2007, 50: 451- 456.
9Collins MM, Nair SB, Wormald PJ. Prevalence of noninvasive fungal sinusitis in South Australia. Am J Rhinol, 2003, 17: 127- 132.
10Tsai TL, Guo YC, Ho CY, et al. The role of ostiomeatal complex obstruction in maxillary fungus ball. Otolaryngol Head Neck Surg, 2006, 134: 494-498.
