@misc{indiciaec4de16c7c4ce,
  title = {The optimal time for conception.},
  author = {W C Weir and T D Downs},
  doi = {10.1016/s0015-0282(16)36545-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/4952192/},
  note = {Source identifier: 4952192}
}