@misc{indiciae6c198168cc8d,
  title = {Surfer's knots. Associated bone changes and medical problems.},
  author = {D W Gelfand},
  year = {1966},
  doi = {10.1001/jama.197.2.149},
  url = {https://pubmed.ncbi.nlm.nih.gov/5952501/},
  note = {Source identifier: 5952501}
}