@misc{indiciae42337d284618,
  title = {[Differential diagnostic difficulties in multiple sclerosis].},
  author = {R Janzen},
  year = {1967},
  doi = {10.1055/s-0028-1103829},
  url = {https://pubmed.ncbi.nlm.nih.gov/4164358/},
  note = {Source identifier: 4164358}
}