title: OnabotulinumtoxinA for treatment of chronic migraine: the unblinding problem.
authors: Montefiore Medical Center & Albert Einstein College of Medicine, Bronx, NY, USA.
authors: Seymour
authors: S
authors: Solomon
mesh_terms: D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D002908:Chronic Disease; D006801:Humans; D008881:Migraine Disorders / Q000517:prevention & control*; D009465:Neuromuscular Agents / Q000627:therapeutic use*; D016032:Randomized Controlled Trials as Topic / Q000379:methods*
chemical_list: D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A