@misc{indiciae72bc19d41cf3,
  title = {Transducer position and mitral valve gradient.},
  author = {J B Agarwal},
  year = {1992},
  doi = {10.1002/ccd.1810250421},
  url = {https://pubmed.ncbi.nlm.nih.gov/1572002/},
  note = {Source identifier: 1572002}
}