@misc{indiciae3237c57d8665,
  title = {Natural contraceptive methods.},
  author = {V Bruni and R Perini and R Cirri and E Degl'Innocenti and C Michelozzi and A Verni},
  url = {https://pubmed.ncbi.nlm.nih.gov/1746208/},
  note = {Source identifier: 1746208}
}