@misc{indiciaefb5e588865b1,
  title = {Allergic response to copper--its possible gingival implications.},
  author = {D I Trachtenberg},
  year = {1972},
  doi = {10.1902/jop.1972.43.11.705},
  url = {https://pubmed.ncbi.nlm.nih.gov/4508352/},
  note = {Source identifier: 4508352}
}