@misc{indiciae09e09091466b,
  title = {Lymphocyte function in patients with recurrent aphthous ulcers.},
  author = {A Sun and Y C Wu and H W Kwan},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3428014/},
  note = {Source identifier: 3428014}
}