@misc{indiciaea0291a53fc82,
  title = {How helminths affect sheep.},
  author = {R L Coop and K W Angus},
  year = {1981},
  doi = {10.1136/inpract.3.4.4},
  url = {https://pubmed.ncbi.nlm.nih.gov/7341491/},
  note = {Source identifier: 7341491}
}