@misc{indiciae7b007893d99e,
  title = {Impedance cardiography.},
  author = {H W Ng and T Walley},
  year = {1993},
  doi = {10.1111/j.1365-2125.1993.tb05900.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8373718/},
  note = {Source identifier: 8373718}
}