@misc{indiciae26adf33727ad,
  title = {Gall bladder lithotripsy.},
  author = {G Matthews},
  year = {1989},
  doi = {10.1136/bmj.299.6707.1060},
  url = {https://pubmed.ncbi.nlm.nih.gov/2511964/},
  note = {Source identifier: 2511964}
}