@misc{indiciaef45886757c40,
  title = {Exercise testing using Doppler ultrasound and xenon clearance techniques.},
  author = {J S Yao},
  doi = {10.1177/000331977502600706},
  url = {https://pubmed.ncbi.nlm.nih.gov/162567/},
  note = {Source identifier: 162567}
}