@misc{indiciaeaa98cb2fe591,
  title = {Multigated blood-pool imaging using heart sounds.},
  author = {M W Groch and J R Domnanovich and W D Erwin and A Ali and D A Turner},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1869971/},
  note = {Source identifier: 1869971}
}