@misc{indiciae4e479aad505e,
  title = {[Causes for spontaneous abortion].},
  author = {M A Petrov-Maslakov and E P Maĭzel' and V Ia Azarova and M A Bashmakova and Z F Vasil'eva},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4631202/},
  note = {Source identifier: 4631202}
}