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. Author manuscript; available in PMC: 2009 May 1.
Published in final edited form as: Proteomics. 2008 May;8(9):1933–1944. doi: 10.1002/pmic.200700859

Figure 1.

Figure 1

Schematics and photographs illustrating (A) injection of BoNT/A into the left TA muscle using a 50 mm, 26-gauge needle and endoscopic guidance, and (B) measurement of maximum vocal fold opening (inspiratory) and closure (expiratory) angles during respiration. Vocal fold movement angle was calculated by subtracting the maximum vocal fold closure angle from the maximum vocal fold opening angle, on a given side. P, posterior commissure; A, anterior commissure; L, left vocal fold medial edge at left vocal process; R, right vocal fold medial edge at right vocal process.