@misc{indiciae68428df11231,
  title = {Iron "undercontamination"?},
  author = {C E Butterworth},
  year = {1972},
  doi = {10.1001/jama.220.4.581},
  url = {https://pubmed.ncbi.nlm.nih.gov/5067129/},
  note = {Source identifier: 5067129}
}