@misc{indiciaeadc28d480b2c,
  title = {[M-mode echocardiography: calculation of the parameters using a programmed microcomputer].},
  author = {V V Shkarin},
  year = {1990},
  url = {https://pubmed.ncbi.nlm.nih.gov/2267580/},
  note = {Source identifier: 2267580}
}