@misc{indiciaec87c257e47ac,
  title = {The Delta Valve: a physiologic shunt system.},
  author = {D A Watson},
  year = {1994},
  doi = {10.1007/bf00301158},
  url = {https://pubmed.ncbi.nlm.nih.gov/7923231/},
  note = {Source identifier: 7923231}
}