@misc{indiciae87bd0ae98497,
  title = {Keratoacanthoma. A clinical study.},
  author = {J Kingman and J P Callen},
  year = {1984},
  doi = {10.1001/archderm.120.6.736},
  url = {https://pubmed.ncbi.nlm.nih.gov/6721538/},
  note = {Source identifier: 6721538}
}