title: Ultrasound apparatus for the measurement of facial movement.
mesh_terms: D004409:Dyskinesia, Drug-Induced / Q000503:physiopathology; D004582:Electronics, Medical; D005145:Face / Q000503:physiopathology*; D006801:Humans; D009068:Movement; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography