@misc{indiciaeb88d2ac5e875,
  title = {Anticoagulation variability between centres: implications for comparative prosthetic valve assessment.},
  author = {E G Butchart and P A Lewis and E N Kulatilake and I M Breckenridge},
  year = {1988},
  doi = {10.1016/s1010-7940(88)80002-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/3272209/},
  note = {Source identifier: 3272209}
}