@misc{indiciae4bd315c5967f,
  title = {Ultrasonography in obstetrical diagnostics.},
  author = {I Roszkowski and J Etienne and J Groniowski and J Kretowicz and A Wichrzycki},
  year = {1970},
  url = {https://pubmed.ncbi.nlm.nih.gov/5510295/},
  note = {Source identifier: 5510295}
}