@misc{indiciae3116446601dc,
  title = {Comment: unusual digoxin concentrations.},
  author = {M Levine and J P McCormack},
  year = {1989},
  doi = {10.1177/106002808902300929},
  url = {https://pubmed.ncbi.nlm.nih.gov/2800594/},
  note = {Source identifier: 2800594}
}