@misc{indiciae6dff3925a378,
  title = {Valve replacement during pregnancy.},
  author = {J W Harthorne and M J Buckley and J W Grover and W G Austen},
  year = {1967},
  doi = {10.7326/0003-4819-67-5-1032},
  url = {https://pubmed.ncbi.nlm.nih.gov/6050810/},
  note = {Source identifier: 6050810}
}