@misc{indiciaedbbefbfc5afe,
  title = {Spectrophotometric titration of phenolic groups of pepsin.},
  author = {F Ahmad and P McPhie},
  year = {1978},
  doi = {10.1016/0005-2795(78)90508-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/31919/},
  note = {Source identifier: 31919}
}