@misc{indiciae45590b30e86f,
  title = {[Mitral valve prolapse syndrome].},
  author = {E P Bersano and A J Zago and U Carvalho and A G Mattos},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/921565/},
  note = {Source identifier: 921565}
}