참고문헌
- Lee, S. H., Choi, H. S., Choi S. H., & Kim H. H. (2018). Voice quality of normal elderly people after a 3 oz water-swallow test: An acoustic analysis. Phonetics and Speech Sciences, 10(2), 69-76. https://doi.org/10.13064/KSSS.2018.10.2.069
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