@misc{indiciae5ee59711d6d8,
  title = {Fibrosarcoma arising from pyriform sinus.},
  author = {E C Choi and S I Paik and K M Kim and Y K Park and H B Moon},
  year = {1987},
  doi = {10.3349/ymj.1987.28.3.214},
  url = {https://pubmed.ncbi.nlm.nih.gov/3433811/},
  note = {Source identifier: 3433811}
}