@misc{indiciae4107ea0f2a48,
  title = {The phonocardiogram exercise test.},
  author = {Y Xiao and S Xiao and Z Cao and S Zhou and J Pei},
  doi = {10.1109/51.775497},
  url = {https://pubmed.ncbi.nlm.nih.gov/10429910/},
  note = {Source identifier: 10429910}
}