TABLE 1.

Study Participant Demographics

Participants	Number
MS	206
Relapsing–remitting	128
Secondary progressive	48
Primary progressive	15
Clinically isolated syndrome	12
Progressive relapsing	3
Non-MS	70
Other neurological diseases	37
Headache	22
Neuropathy	3
Trigeminal nerve disorders	3
Disk disease and neck pain	3
Encephalitis	2
Alzheimer dementia	1
Brachial neuritis	1
Neuromyelitis optica	1
Brain tumor	1
Cerebrovascular diseases	22
Cerebral infarction	17
Stroke syndrome	1
Carotid artery occlusion	1
Intracerebral hemorrhage	1
Generalized convulsion	1
Carotidynia	1
Healthy controls	11

MS=multiple sclerosis.