title: Clinical trials on onabotulinumtoxinA for the treatment of chronic migraine.
authors: Michael Bjørn
authors: MB
authors: Russell
mesh_terms: D019274:Botulinum Toxins, Type A / Q000008:administration & dosage* / Q000009:adverse effects; D002908:Chronic Disease; D006801:Humans; D008881:Migraine Disorders / Q000145:classification / Q000188:drug therapy* / Q000503:physiopathology; D009465:Neuromuscular Agents / Q000008:administration & dosage* / Q000009:adverse effects; D016032:Randomized Controlled Trials as Topic / Q000379:methods / Q000592:standards
chemical_list: D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A