@misc{indiciae68b583b98f40,
  title = {Trace elements.},
  author = {D D Ulmer},
  year = {1977},
  doi = {10.1056/nejm197708112970607},
  url = {https://pubmed.ncbi.nlm.nih.gov/876314/},
  note = {Source identifier: 876314}
}