title: Impaired time perception in patients with chronic headache.
mesh_terms: D000328:Adult; D001676:Biofeedback, Psychology; D002908:Chronic Disease; D005260:Female; D006261:Headache / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010465:Perception; D010507:Periodicity