@misc{indiciae52b7a39e7405,
  title = {Screening for upper gastrointestinal tract malignancies.},
  author = {Alphonso Brown and Nicholas J Shaheen},
  year = {2004},
  doi = {10.1053/j.seminoncol.2004.04.018},
  url = {https://pubmed.ncbi.nlm.nih.gov/15297941/},
  note = {Source identifier: 15297941}
}