@misc{indiciae6b66fb926d50,
  title = {Fertility awareness-based methods for contraception.},
  author = {D A Grimes and M F Gallo and V Grigorieva and K Nanda and K F Schulz},
  year = {2004},
  doi = {10.1002/14651858.cd004860.pub2},
  url = {https://pubmed.ncbi.nlm.nih.gov/15495128/},
  note = {Source identifier: 15495128}
}