@misc{indiciae3a2d1c753e1d,
  title = {Symposium: bovine immune system.},
  author = {J E Butler and A J Winter and G G Wagner},
  year = {1971},
  doi = {10.3168/jds.s0022-0302(71)86026-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4106194/},
  note = {Source identifier: 4106194}
}