@misc{indiciae2e54850760d1,
  title = {Ultrasonography.},
  author = {Philip W Ralls and R Brooke Jeffrey and Robert A Kane and Michelle Robbin},
  year = {2002},
  doi = {10.1016/s0889-8553(02)00030-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/12481732/},
  note = {Source identifier: 12481732}
}