title: Electromyographic behavior of the levator labii superioris alaeque nasi.
mesh_terms: D000293:Adolescent; D000328:Adult; D004576:Electromyography; D005149:Facial Expression; D005152:Facial Muscles / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009666:Nose