@misc{indiciae52a664795a55,
  title = {Oral immunization: past and present.},
  author = {J Mestecky and J R McGhee},
  year = {1989},
  doi = {10.1007/978-3-642-74529-4\_1},
  url = {https://pubmed.ncbi.nlm.nih.gov/2659273/},
  note = {Source identifier: 2659273}
}