@misc{indiciae14008c526ce4,
  title = {Potassium changes after open heart surgery.},
  author = {M Kettlewell and R White and P Saunders and J Hamer},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/5433337/},
  note = {Source identifier: 5433337}
}