@misc{indiciaee1f6720c87f9,
  title = {[Chronic fatigue syndrome].},
  author = {S Ewig and H J Dengler},
  year = {1990},
  doi = {10.1007/bf01796268},
  url = {https://pubmed.ncbi.nlm.nih.gov/2170741/},
  note = {Source identifier: 2170741}
}