@misc{indiciae665196aa6556,
  title = {Across-shift lung function changes among pig farmers.},
  author = {D Heederik and R van Zwieten and R Brouwer},
  year = {1990},
  doi = {10.1002/ajim.4700170110},
  url = {https://pubmed.ncbi.nlm.nih.gov/2305788/},
  note = {Source identifier: 2305788}
}