@misc{indiciae706481a754ad,
  title = {[Observation and analyses on voice changes in the normal aged].},
  author = {Y Liang and W N Huang and C Zhang and Q R Meng and L J Yang},
  year = {2000},
  url = {https://pubmed.ncbi.nlm.nih.gov/12563947/},
  note = {Source identifier: 12563947}
}