Calculation of anterior glottic gap area in pixels using Image J software. Anterior gap is traced out in yellow and pixels within the lines are calculated. Normalized gap is then calculated by dividing anterior gap by the square of vocal fold length times 100. © The American Laryngological, Rhinological and Otological Society, Inc

Calculation of anterior glottic gap area in pixels using Image J software. Anterior gap is traced out in yellow and pixels within the lines are calculated. Normalized gap is then calculated by dividing anterior gap by the square of vocal fold length times 100. © The American Laryngological, Rhinological and Otological Society, Inc

Calculation of anterior glottic gap area in pixels using Image J software. Anterior gap is traced out in yellow and pixels within the lines are calculated. Normalized gap is then calculated by dividing anterior gap by the square of vocal fold length times 100.
© The American Laryngological, Rhinological and Otological Society, Inc

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