@misc{indiciae6006a3368154,
  title = {Letter: Prolonged gestation.},
  author = {A J Todd and T Lonsdale},
  year = {1976},
  doi = {10.1136/vr.98.5.100},
  url = {https://pubmed.ncbi.nlm.nih.gov/1258299/},
  note = {Source identifier: 1258299}
}