@misc{indiciae5d3208c718a2,
  title = {Symptom substitution: a case study.},
  author = {K Ottenbacher and M Ottenbacher},
  year = {1981},
  doi = {10.1007/bf01253722},
  url = {https://pubmed.ncbi.nlm.nih.gov/7294245/},
  note = {Source identifier: 7294245}
}