@misc{indiciae28e534804310,
  title = {A QUANTITATIVE METHOD FOR THE ESTIMATION OF PEPSIN.},
  author = {W S Polland and A L Bloomfield},
  year = {1929},
  doi = {10.1172/jci100220},
  url = {https://pubmed.ncbi.nlm.nih.gov/16693853/},
  note = {Source identifier: 16693853}
}