@misc{indiciaef53a58e9f6aa,
  title = {Twin studies and multiple sclerosis.},
  author = {H F McFarland},
  year = {1992},
  doi = {10.1002/ana.410320603},
  url = {https://pubmed.ncbi.nlm.nih.gov/1471861/},
  note = {Source identifier: 1471861}
}