Fig 1.
Injection sites around the velopharyngeal structure.
Fig 2.
Schematic diagram of the experimental model.
Fig 3.
Measurement method of the amount of the nasal air leakage.
Table 1.
Relationship between median volume of nasal air leakage and volume of injected saline.
The interquartile ranges are shown in parentheses.
Fig 4.
Nasal air flow with 6 mL saline injection to the soft palate.
Table 2.
The median increase rate of nasal resistance by saline injection to the soft palate.
The interquartile ranges are shown in parentheses.