RID21517 trunk of branch of lower deep buccal branch of facial nerve
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RID21521 trunk of branch of lower deep buccal branch of facial nerve to orbicularis oris
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RID21522 trunk of branch of lower deep buccal branch of right facial nerve to right orbicularis oris
RID21523 trunk of branch of lower deep buccal branch of left facial nerve to left orbicularis oris