@misc{indiciae310a12955de0,
  title = {Cholera enterotoxin free from permeability factor?},
  author = {G F Grady and M C Chang},
  year = {1970},
  doi = {10.1093/infdis/121.supplement.s92},
  url = {https://pubmed.ncbi.nlm.nih.gov/5421433/},
  note = {Source identifier: 5421433}
}