Nasal Polyp Grading: Meltzer Clinical Scoring System
Nasal Obstruction Symptoms Evaluation (NOSE) scale
Total Nasal Symptoms Score
Article: Sino-nasal Outcome Test (SNOT-22): A predictor of post-surgical improvement in patients with chronic sinusitis
The staging system created by Lund and Mackay used to described rhinosinusitis.
Fungal sinusitis classification by Deshazo et al.
Chandler classification describing the orbital complications of sinusitis.
Frontal cell classification created by Bent and Kuhn