@misc{indiciae600264fa8ba1,
  title = {Changes to biological source materials.},
  author = {K Sewerin and Emily Shacter and James Robertson and Claus Wallerius},
  year = {2006},
  doi = {10.1016/j.biologicals.2005.08.020},
  url = {https://pubmed.ncbi.nlm.nih.gov/16480893/},
  note = {Source identifier: 16480893}
}