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Subject
- 50 Female
- 47 Middle Aged
- 42 Adult
- 35 Aged
- 33 Endoscopy
- 22 Treatment Outcome
- 17 Sinusitis
- 16 Prospective Studies
- 15 Chronic Disease
- 13 Aged, 80 and over
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Date issued
- 11 2010 - 2016
- 48 2000 - 2009