The anatomy of a smile: its importance in the treatment of facial paralysis.
D002610:Cheek; D005149:Facial Expression; D005152:Facial Muscles / Q000033:anatomy & histology* / Q000503:physiopathology; D005158:Facial Paralysis / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008046:Lip; D009119:Muscle Contraction; D013518:Surgery, Plastic