@misc{indiciae94e3911af1ee,
  title = {Cardiac work and contractility.},
  author = {J Hamer},
  year = {1968},
  doi = {10.1136/hrt.30.4.443},
  url = {https://pubmed.ncbi.nlm.nih.gov/5659391/},
  note = {Source identifier: 5659391}
}