https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837230/
http://www.clinph-journal.com/article/S1388-2457(18)30239-6/fulltext
http://casereports.bmj.com/content/2017/bcr-2016-218893.full
https://www.ncbi.nlm.nih.gov/pubmed/28777260
https://insights.ovid.com/pubmed?pmid=28248701
http://www.ajnr.org/content/38/6/1070.long
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5535008/
http://n.neurology.org/content/88/14/1340.long
https://link.springer.com/article/10.1007%2Fs00259-016-3589-9
https://www.nature.com/articles/nrn Febeurol.2017.43