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Subject
- 50 Humans
- 42 Middle Aged
- 39 Adult
- 33 Aged
- 29 Endoscopy
- 21 Treatment Outcome
- 16 Prospective Studies
- 16 Sinusitis
- 15 Chronic Disease
- 13 Aged, 80 and over
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Date issued
- 10 2010 - 2016
- 40 2000 - 2009