@misc{indiciaea6becaa07342,
  title = {Multiple sclerosis--an enigma.},
  author = {G H Williams},
  year = {1967},
  doi = {10.3949/ccjm.34.1.1},
  url = {https://pubmed.ncbi.nlm.nih.gov/6039675/},
  note = {Source identifier: 6039675}
}