@misc{indiciaefd4dc5c5fa64,
  title = {Pregnancy after aortic valve prothesis.},
  author = {H Hedstrand and I Cullhed},
  year = {1968},
  doi = {10.1016/s0140-6736(68)91087-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/4176168/},
  note = {Source identifier: 4176168}
}