@misc{indiciaed504f375d407,
  title = {Primary pulmonary hypertension.},
  author = {Y Sukumalchantra and P Charoenpan and W I Ayuthya},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/932588/},
  note = {Source identifier: 932588}
}