@misc{indiciaece98e3356b47,
  title = {Exacerbations, activity, and progression in multiple sclerosis.},
  author = {C M Poser},
  year = {1980},
  doi = {10.1001/archneur.1980.00500570019001},
  url = {https://pubmed.ncbi.nlm.nih.gov/7417038/},
  note = {Source identifier: 7417038}
}