TY - JOUR T1 - Analyses of sustained vowels in Down Syndrome (DS): a case study using spectrograms and perturbation data to investigate voice quality in four adults with DS JO - Journal of Voice UR - https://eprints.whiterose.ac.uk/id/eprint/121922 PY - 2018/09/01 AU - Jeffery T AU - Cunningham S AU - Whiteside SP ED - DO - DOI: 10.1016/j.jvoice.2017.08.004 PB - Elsevier VL - 32 IS - 5 SP - 644.E11 EP - 644.E24 Y2 - 2025/11/08 ER -