@misc{indiciaeb560a3a6a3f3,
  title = {[Acute idiopathic pericarditis evolving into constrictive pericarditis].},
  author = {I Beloev and T Nikolov},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/1014605/},
  note = {Source identifier: 1014605}
}