Tassorelli, Cristina Botulinum toxin for chronic migraine: Clinical trials and technical aspects. [electronic resource] - Toxicon : official journal of the International Society on Toxinology Jun 2018 - 111-115 p. digital Publication Type: Journal Article; Review ISSN: 1879-3150 Standard No.: 10.1016/j.toxicon.2017.08.026 doi Subjects--Topical Terms: Acetylcholine Release Inhibitors--administration & dosageBotulinum Toxins, Type A--administration & dosageChronic DiseaseHumansInjections, IntramuscularMigraine Disorders--drug therapy