@misc{indiciae504b544b758a,
  title = {When to spay.},
  author = {J M Evans},
  year = {1988},
  doi = {10.1136/vr.122.10.239},
  url = {https://pubmed.ncbi.nlm.nih.gov/3363821/},
  note = {Source identifier: 3363821}
}