@misc{indiciae2da491defc2b,
  title = {Pitfalls in lower extremity venous duplex scanning.},
  author = {D J Wright and A D Shepard and M McPharlin and C B Ernst},
  year = {1990},
  doi = {10.1067/mva.1990.18519},
  url = {https://pubmed.ncbi.nlm.nih.gov/2186184/},
  note = {Source identifier: 2186184}
}