@misc{indiciaeb468664afd5d,
  title = {Concerning the nature of type C botulinus toxin fractions},
  author = {D. R. Coburn},
  year = {1942},
  doi = {10.1126/science.95.2467.389},
  url = {https://pubs.usgs.gov/publication/5220716},
  note = {Source identifier: 5220716}
}