Figure 1. Level of neurofilaments light chain (NF-L) in the cerebrospinal fluid of control patients, untreated patients with relapse remitting multiple sclerosis (RRMS), and RRMS patients treated with fingolimod (Fingo) patients. Data are reported as median and range. Statistical analysis was carried out with the Kruskal-Wallis test, followed by the Mann-Whitney test. ns: not significant.