@misc{indiciaebbabc0754457,
  title = {Penile ulcers.},
  author = {R E Kerber},
  year = {1972},
  doi = {10.1056/nejm197211232872131},
  url = {https://pubmed.ncbi.nlm.nih.gov/4538720/},
  note = {Source identifier: 4538720}
}