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Sinusitis
Squamous Cell Carcinoma
Head and Neck Neoplasms
Laryngeal Neoplasms
Rhinitis
Tinnitus
Chronic Disease
Local Neoplasm Recurrences
Treatment Outcome
Comorbidity
Retrospective Studies
Neoplasm Staging
Survival Rate
Severity of Illness Index
Multivariate Analysis
Survival Analysis
Prospective Studies
Cohort Studies
Analysis of Variance
Proportional Hazards Models
Co-Publications
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