Voice, Speech, and Language: What are they? by NIDCD
= Voice, Speech, and Language: What are they? by NIDCD
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{tag=Work by National Institute on Deafness and Other Communication Disorders}
https://www.nidcd.nih.gov/news/multimedia/voice-speech-language-what-are-they-text-version
Official text version from the National Institute on Deafness and Other Communication Disorders. The definitions distinguish vocal-fold vibration, articulatory movement and language.