@misc{indiciae1b57abc5b429,
  title = {[Doppler-echo features in mitral prolapse].},
  author = {M Penco and L Di Renzi and L R Pastore and F Fedele and L Agati},
  year = {1979},
  url = {https://pubmed.ncbi.nlm.nih.gov/553652/},
  note = {Source identifier: 553652}
}