@misc{indiciae4c78bd996fca,
  title = {[CO 2 gradient in mitral valve diseases].},
  author = {A Sarno and G Caimi and M Amuso and M Adamo},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4807036/},
  note = {Source identifier: 4807036}
}