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The Egyptian Journal of Otolaryngology
Fig. 3 | The Egyptian Journal of Otolaryngology

Fig. 3

From: Endoscopic treatment of anterior laryngeal web using keel designed from ePTFE followed by voice therapy: a refined technique

Fig. 3

This figure shows the outcomes of auditory perceptual assessment of the voice quality by GRBAS score and the stroboscopic mucosal waves score. Note the significant improvement in both (decrease grade of dysphonia and increase stroboscopic wave vibrations) (a). The fundamental frequency outcome was shown in b. GRBAS: Grade overall-Roughness-Breathiness-Asthenia-Strain, strob: stroboscopic mucosal wave, F0: fundamental frequency, Hz: Hertz, preop: preoperative, postop: postoperative, ns: non-significant, ***P < 0.001

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