@misc{indiciaed1b6c9514f12,
  title = {Primary pulmonary hypertension.},
  author = {G Walcott and H B Burchell and A L Brown},
  year = {1970},
  doi = {10.1016/s0002-9343(70)80115-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/4194011/},
  note = {Source identifier: 4194011}
}