title: New method for fast continuous measurement of the lip-opening area.
mesh_terms: D004581:Electronics / Q000295:instrumentation; D005453:Fluorescence; D006801:Humans; D008046:Lip; D009055:Mouth; D013060:Speech / Q000502:physiology*; D013690:Television; D014059:Tongue; D014070:Tooth; D014466:Ultraviolet Rays