@misc{indiciae1c9834614c85,
  title = {Percutaneous nephrolithotomy.},
  author = {J E Wickham and M J Kellet},
  year = {1981},
  doi = {10.1136/bmj.283.6306.1571},
  url = {https://pubmed.ncbi.nlm.nih.gov/6796170/},
  note = {Source identifier: 6796170}
}