@misc{indiciaed61e3408f89c,
  title = {Comorbidity in primary care: presentation and consequences.},
  author = {H U Wittchen and R Lieb and U Wunderlich and P Schuster},
  year = {1999},
  url = {https://pubmed.ncbi.nlm.nih.gov/10326872/},
  note = {Source identifier: 10326872}
}