@misc{indiciae58b1fbc07893,
  title = {[Electrocardiographic changes in persistent ductus arteriosus].},
  author = {U Manger and H Vettermann},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5377557/},
  note = {Source identifier: 5377557}
}