title: Botulinum toxin treatment of essential blepharospasm and hemifacial spasm.
authors.forename: M
authors.initials: M
authors.lastname: Singer
mesh_terms: D000316:Adrenergic alpha-Agonists / Q000627:therapeutic use; D001763:Blepharoptosis / Q000139:chemically induced / Q000188:drug therapy; D001764:Blepharospasm / Q000188:drug therapy*; D001905:Botulinum Toxins / Q000009:adverse effects / Q000627:therapeutic use*; D003000:Clonidine / Q000031:analogs & derivatives / Q000627:therapeutic use; D005152:Facial Muscles; D005260:Female; D006801:Humans; D007267:Injections; D008875:Middle Aged; D013035:Spasm / Q000188:drug therapy*
chemical_list: D000316:Adrenergic alpha-Agonists; C016986:apraclonidine; D001905:Botulinum Toxins; D003000:Clonidine