@misc{indiciaef4c56124d9dd,
  title = {A Technique for Testing Heart Function by Analysis of Its Vibration Spectrum Progress Report, Jul. 31 - Dec. 31, 1965},
  author = {Agress, C. M.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19660012149},
  note = {Source identifier: 19660012149}
}