@misc{indiciaec96a38bd17a8,
  title = {Operative ultrasonography.},
  author = {B Sigel and J C Coelho and L M Nyhus and D G Spigos},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6623317/},
  note = {Source identifier: 6623317}
}