4-Aminopyridine Female 2 Humans 2 Male 2 Multiple Sclerosis 2 controlled study 2 fampridine 2 female 2 human 2 male 2 multiple sclerosis 2 4-aminopyridine 1 Animals 1 Article 1 Axons 1 Brain Injuries, Traumatic 1 C57BL mouse 1 Caucasian 1 Demyelination 1 Electrophysiology 1 Expanded Disability Status Scale 1 Health Services Accessibility 1 Health Systems Plans 1 Kv1.2 1 Medical Assistance 1 Mice 1 Mice, Inbred C57BL 1 Middle Aged 1 Pharmaceutical Services 1 Retrospective Studies 1