title: [A statistical analysis of block therapy for hemifacial spasm].
mesh_terms: D000328:Adult; D000368:Aged; D005152:Facial Muscles; D005154:Facial Nerve; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009407:Nerve Block; D013035:Spasm / Q000628:therapy*