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Subject
- 45 Humans
- 42 Male
- 38 Adult
- 32 Aged
- 25 Endoscopy
- 17 Treatment Outcome
- 16 Chronic Disease
- 16 Sinusitis
- 13 Aged, 80 and over
- 13 Prospective Studies
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Date issued
- 10 2010 - 2016
- 35 2000 - 2009