@misc{indiciae5c638076e7f7,
  title = {How many years must a profession exist...?},
  author = {William M Hang},
  year = {2006},
  doi = {10.1179/crn.2006.012},
  url = {https://pubmed.ncbi.nlm.nih.gov/16711266/},
  note = {Source identifier: 16711266}
}