@misc{indiciae3a0c550f3472,
  title = {Relation between cyclic variation in echo amplitude and segmental contraction in normal and abnormal hearts.},
  author = {D A Lythall and R B Logan-Sinclair and C J Ilsley and S S Kushwaha and M H Yacoub and D G Gibson},
  year = {1991},
  doi = {10.1136/hrt.66.4.268},
  url = {https://pubmed.ncbi.nlm.nih.gov/1747276/},
  note = {Source identifier: 1747276}
}