@misc{indiciaec53eb3698fba,
  title = {Silicone ball variance. A clinical and pulse duplicator study.},
  author = {J J Collins and E J Berg and D E Harken},
  year = {1968},
  doi = {10.1016/s0003-4975(10)66121-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/5745865/},
  note = {Source identifier: 5745865}
}