title: Essential blepharospasm.
mesh_terms: D000368:Aged; D001764:Blepharospasm / Q000188:drug therapy / Q000601:surgery*; D005141:Eyelid Diseases / Q000601:surgery*; D005143:Eyelids / Q000601:surgery; D005149:Facial Expression; D005152:Facial Muscles / Q000601:surgery; D005154:Facial Nerve / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D009044:Motor Cortex / Q000601:surgery; D009121:Muscle Denervation / Q000009:adverse effects / Q000379:methods; D011613:Psychotherapy; D012008:Recurrence; D013747:Tetrabenazine / Q000627:therapeutic use
chemical_list: D013747:Tetrabenazine