@misc{indiciae82871bb49968,
  title = {Comparison of contractile performance of canine atrial and ventricular muscles.},
  author = {F Urthaler and A A Walker and L L Hefner and T N James},
  year = {1975},
  doi = {10.1161/01.res.37.6.762},
  url = {https://pubmed.ncbi.nlm.nih.gov/158/},
  note = {Source identifier: 158}
}