@misc{indiciaea45d870bbf8a,
  title = {Accelerated chromatographic method for determination of hydroxyproline.},
  author = {P X Callahan and J A Shepard and S Ellis},
  year = {1972},
  doi = {10.1016/0003-2697(72)90253-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/5081096/},
  note = {Source identifier: 5081096}
}