@misc{indiciaea7879cafbc7b,
  title = {Should a fixed external reference system be used to analyze left ventricular wall motion?},
  author = {P D Clayton and G M Jeppson and S C Klausner},
  year = {1982},
  doi = {10.1161/01.cir.65.7.1518},
  url = {https://pubmed.ncbi.nlm.nih.gov/7074810/},
  note = {Source identifier: 7074810}
}