[1]Neurology Department,Hospital Universitario Central Asturias,33006 Oviedo,Spain;
[1]Neurology Department,Hospital Universitario Central Asturias,33006 Oviedo,Spain;
[2]Cardiology Department,Hospital Universitario Central Asturias,33006 Oviedo,Spain;
[1]Neurology Department,Hospital Universitario Central Asturias,33006 Oviedo,Spain;
[1]Neurology Department,Hospital Universitario Central Asturias,33006 Oviedo,Spain;
Amyotrophic lateral sclerosis; Autonomic nervous system diseases; Electrocardiography; Myocardial ischemia; Cardiac catheterization;