@misc{indiciaef43929a0d58d,
  title = {Cracking the egg: increased complexity in the zona pellucida.},
  author = {S J Conner and L Lefièvre and D C Hughes and C L R Barratt},
  year = {2005},
  doi = {10.1093/humrep/deh835},
  url = {https://pubmed.ncbi.nlm.nih.gov/15760956/},
  note = {Source identifier: 15760956}
}