@misc{indiciae2af19c105565,
  title = {[Cervical pregnancy].},
  author = {J Serdio Calderón and E A Ugarte Noda and M A Pérez Martín and R de León Caballero and I A Gamboa},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3154219/},
  note = {Source identifier: 3154219}
}