References
2. Rosenfeld RM. Clinical practice. Acute sinusitis in adults. New Engl J Med 2016;375:962-970.
3. Sharp HJ, Denman D, Puumala S, et al. Treatment of acute and chronic rhinosinusitis in the United States, 1999-2002. Arch Otolaryngol Head Neck Surg 2007;133:260-265.
4. Sharma P, Finley R, Weese S, et al. Antibiotic prescriptions for outpatient acute rhinosinusitis in Canada, 2007-2013. PLoS One 2017;12:e0181957.
5. Schroeck JL, Ruh CA, Sellick JA, et al. Factors associated with antibiotic misuse in outpatient treatment for upper respiratory tract infections. Antimicrob Agents Chemother 2015;59:3848-3852.
6. Jørgensen LC, Friis Christensen S, Cordoba Currea G, et al. Antibiotic prescribing in patients with acute rhinosinusitis is not in agreement with European recommendations. Scand J Prim Health Care 2013;31: 101-105.
7. Gulliford MC, Dregan A, Moore MV, et al. Continued high rates of antibiotic prescribing to adults with respiratory tract infection: survey of 568 UK general practices. BMJ Open 2014;4:e006245.
8. Gill JM, Fleischut P, Haas S, et al. Use of antibiotics for adult upper respiratory infections in outpatient settings: a national ambulatory network study. Fam Med 2006;38:349-354.
9. Fleming-Dutra KE, Hersh AL, Shapiro DJ, et al. Prevalence of inappropriate antibiotic prescriptions among US ambulatory care visits, 2010-2011. JAMA 2016;315:1864-1873.
10. Dekker AR, Verheij TJ, van der Velden AW. Inappropriate antibiotic prescription for respiratory tract indications: most prominent in adult patients. Fam Pract 2015;32:401-407.
12. Williams JW, Simel DL. Does this patient have sinusitis? Diagnosing acute sinusitis by history and physical examination. JAMA 1993;270: 1242-1246.
13. Varonen H, Kunnamo I, Savolainen S, et al. Treatment of acute rhinosinusitis diagnosed by clinical criteria or ultrasound in primary care. A placebo-controlled randomised trial. Scand J Prim Health Care 2003;21:121-126.
14. Teppo H, Revonta M. Ultrasound device helps in ruling out maxillary sinus fluid in acute rhinosinusitis: how we do it. Clin Otolaryngol 2011;36:491-494.
15. Fufezan O, Asavoaie C, Cherecheş Panta P, et al. The role of ultrasonography in the evaluation of maxillary sinusitis in pediatrics. Med Ultrason 2010;12:4-11.
16. Varonen H, Mäkelä M, Savolainen S, et al. Comparison of ultrasound, radiography, and clinical examination in the diagnosis of acute maxillary sinusitis: a systematic review. J Clin Epidemiol 2000;53:940-948.
17. Gianoli GJ, Mann WJ, Miller RH. B-mode ultrasonography of the paranasal sinuses compared with CT findings. Otolaryngol Head Neck Surg 1992;107(6 Pt 1):713-720.
18. Pelikan Z. Part III. Clinical Disease. In: Gershwin ME, Incaudo G, eds. Diseases of the Sinuses: A Comprehensive Textbook of Diagnosis and Treatment. New York: Springer Science & Business Media; 2012:134-150.
19. Varonen H, Rautakorpi UM, Huikko S, et al. Management of acute maxillary sinusitis in Finnish primary care. Results from the nationwide MIKSTRA study. Scand J Prim Health Care 2004;22:122-127.
20. Gwaltney JM, Jr Phillips CD, Miller RD, et al. Computed tomographic study of the common cold. N Engl J Med 1994;330:25-30.
21. Chow AW, Benninger MS, Brook I, et al. IDSA clinical practice guideline for acute bacterial rhinosinusitis in children and adults. Clin Infect Dis 2012;54:e72-e112.
22. Lichtenstein D, Biderman P, Meziè G, et al. The “sinusogram,” a real-time ultrasound sign of maxillary sinusitis. Intensive Care Med 1998;24:1057-1061.
23. Vargas F, Boyer A, Bui HN, et al. A postural change test improves the prediction of a radiological maxillary sinusitis by ultrasonography in mechanically ventilated patients. Intensive Care Med 2007;33:1474-1478.
24. van Zanten AR, Dixon JM, Nipshagen MD, et al. Hospital-acquired sinusitis is a common cause of fever of unknown origin in orotracheally intubated critically ill patients. Crit Care 2005;9:R583-R590.
26. Sharp AL, Shen E, Kanter MH, et al. Low-value antibiotic prescribing and clinical factors influencing patient satisfaction. Am J Manag Care 2017;23:589-594.
27. Bhattacharyya N, Kepnes LJ. Patterns of care before and after the adult sinusitis clinical practice guideline. Laryngoscope 2013;123: 1588-1591.