@misc{indiciae57cd283ee8cb,
  title = {Pilot study with Lippes loop in La Paz, Bolivia.},
  author = {R W Tichauer and E Vargas de Maure},
  year = {1968},
  url = {https://pubmed.ncbi.nlm.nih.gov/4231241/},
  note = {Source identifier: 4231241}
}