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The utilization of voice spectrography can be an important adjunct to the assessment of vocal cord function by both laryngologists and speech pathologists. It is especially useful in determining the effectiveness of vocal cord Teflon paste injection procedures. Dysphonic characteristics are made visible, and their improvement can be monitored. As such, spectrographic analysis should be considered as a useful tool for the laryngologist.
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Rontal et al. (1975) studied this question.
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