@misc{indiciaea71f3deba821,
  title = {Perioperative sonography.},
  author = {W M Chadduck},
  year = {1989},
  doi = {10.1177/0883073889004001s14},
  url = {https://pubmed.ncbi.nlm.nih.gov/2681385/},
  note = {Source identifier: 2681385}
}