@misc{indiciaec9b655e0635f,
  title = {Variations in practice patterns.},
  author = {M Renwick and S Sax},
  year = {1991},
  doi = {10.5694/j.1326-5377.1991.tb101306.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1921780/},
  note = {Source identifier: 1921780}
}