@misc{indiciae15b795b10d47,
  title = {How far down the path have we gone?},
  author = {M B Visscher},
  year = {1970},
  doi = {10.1097/00001888-197002000-00008},
  url = {https://pubmed.ncbi.nlm.nih.gov/5415068/},
  note = {Source identifier: 5415068}
}