@misc{indiciae1962c4cae9df,
  title = {Unexplained severe chronic pain in general practice.},
  author = {J J Kerssens and P F M Verhaak and A I M Bartelds and M J Sorbi and J M Bensing},
  year = {2002},
  doi = {10.1053/eujp.2001.0330},
  url = {https://pubmed.ncbi.nlm.nih.gov/12036307/},
  note = {Source identifier: 12036307}
}