@misc{indiciae795e67d625fe,
  title = {Secondary progressive multiple sclerosis: current knowledge and future challenges.},
  author = {Marco Rovaris and Christian Confavreux and Roberto Furlan and Ludwig Kappos and Giancarlo Comi and Massimo Filippi},
  year = {2006},
  doi = {10.1016/s1474-4422(06)70410-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16545751/},
  note = {Source identifier: 16545751}
}