@misc{indiciaee325942e32b9,
  title = {Ultrasonic lithotripsy: laboratory evaluation.},
  author = {S S Howards and E Merrill and S Harris and J Cohn},
  year = {1974},
  url = {https://pubmed.ncbi.nlm.nih.gov/4809517/},
  note = {Source identifier: 4809517}
}