@misc{indiciae9329598f1b9b,
  title = {Persistent patent ductus arteriosus.},
  author = {R I Clyman},
  year = {1991},
  doi = {10.1017/s026646230001254x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2037442/},
  note = {Source identifier: 2037442}
}