@misc{indiciaefdf890ba36bf,
  title = {Recurrent aphthous ulceration.},
  author = {D M Walker and A E Dolby},
  year = {1976},
  doi = {10.1111/j.1365-4362.1976.tb04894.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/971977/},
  note = {Source identifier: 971977}
}