@misc{indiciae6aa0b4bc9b9c,
  title = {Prolonged breastfeeding as a birth spacing method.},
  author = {J K van Ginneken},
  year = {1975},
  doi = {10.1093/tropej/21.2.59},
  url = {https://pubmed.ncbi.nlm.nih.gov/1040031/},
  note = {Source identifier: 1040031}
}