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Internal nasal valve angle measured by OCT in normal condition, during inspiration, with external pressure over the nasal valve area, after application of nasal decongestant, during inspiration after application of nasal decongestant and with external pressure over the nasal valve area after application of nasal decongestant. Group comparisons were done using the Kruskal-Wallis test followed by Dunn’s test (*: p < 0.05).
