title: Stratifying disease stages with different progression rates determined by electrophysiological tests in patients with amyotrophic lateral sclerosis.
authors.forename: Mamede
authors.initials: M
authors.lastname: de Carvalho
authors.forename: Michael
authors.initials: M
authors.lastname: Swash
mesh_terms: D000200:Action Potentials / Q000502:physiology; D000690:Amyotrophic Lateral Sclerosis / Q000175:diagnosis* / Q000503:physiopathology*; D018450:Disease Progression; D004558:Electric Stimulation / Q000379:methods; D004594:Electrophysiology / Q000379:methods*; D006801:Humans