_:vb50950929 "url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5779309/"^^ . _:vb50950929 . _:vb50950929 . _:vb50950929 "A variable age at onset electroclinical syndrome that is consistently induced by identifiable and objective-specific triggers, which may be an afferent stimulus or by the patient's own activity."^^ . _:vb50950929 . _:vb50950929 . _:vb50950929 .