@misc{indiciaede8257386e63,
  title = {[Heart borders according to fluorography data].},
  author = {M G Kazakov and Iu M Kazakov and S I Kazakova},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/883269/},
  note = {Source identifier: 883269}
}