Assessing degree of nasal patency by measuring peak expiratory flow rate through the nose.
D000403:Airway Resistance; D003139:Common Cold / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D009666:Nose / Q000503:physiopathology*; D010656:Phenylephrine / Q000494:pharmacology; D012212:Rheology; D006255:Rhinitis, Allergic, Seasonal / Q000503:physiopathology*
D010656:Phenylephrine