@misc{indiciaeb080af821957,
  title = {Time to pregnancy--a model and its application.},
  author = {J L Boldsen and I Schaumburg},
  year = {1990},
  doi = {10.1017/s0021932000018587},
  url = {https://pubmed.ncbi.nlm.nih.gov/2335546/},
  note = {Source identifier: 2335546}
}