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 - http://eprints.whiterose.ac.uk/121922/ PY - 2018/09/01 AU - Jeffery T AU - Cunningham S AU - Whiteside SP ED - DO - DOI: 10.1016/j.jvoice.2017.08.004 VL - 32 IS - 5 SP - 644.e11 EP - 644.e24 Y2 - 2024/09/19 ER -