@misc{indiciae9ffbcb2d44fe,
  title = {[Research in contraception II: methodilogical aspects].},
  author = {J L Ahumada and R Nicholson and L O Borghi and S Hartman},
  url = {https://pubmed.ncbi.nlm.nih.gov/4478831/},
  note = {Source identifier: 4478831}
}