@misc{indiciaebfe873c6a91c,
  title = {Bleeding problems and progestogen-only contraception.},
  author = {Charlotte Porter and Margaret C P Rees},
  year = {2002},
  doi = {10.1783/147118902101196784},
  url = {https://pubmed.ncbi.nlm.nih.gov/12419054/},
  note = {Source identifier: 12419054}
}