@misc{indiciae1a1dd8133432,
  title = {Digoxin-specific antibodies.},
  author = {V P Butler and J P Chen},
  year = {1967},
  doi = {10.1073/pnas.57.1.71},
  url = {https://pubmed.ncbi.nlm.nih.gov/4227743/},
  note = {Source identifier: 4227743}
}