@misc{indiciaeefd0adff97db,
  title = {Letter: Farmer's lung: a neglected antigen.},
  author = {T Cross and B A Unsworth},
  year = {1976},
  doi = {10.1016/s0140-6736(76)92731-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/57352/},
  note = {Source identifier: 57352}
}