@misc{indiciae50679208bab8,
  title = {Heparin effect on ionised calcium concentration.},
  author = {C K Biswas and J M Ramos and D N Kerr},
  year = {1981},
  doi = {10.1016/0009-8981(81)90053-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7296897/},
  note = {Source identifier: 7296897}
}