title: Controversies in headache.
authors.forename: S K
authors.initials: SK
authors.lastname: Aurora
authors.forename: M
authors.initials: M
authors.lastname: Welch
mesh_terms: D001921:Brain / Q000503:physiopathology; D004558:Electric Stimulation; D006801:Humans; D008280:Magnetics; D008881:Migraine Disorders / Q000503:physiopathology*; D010719:Phosphenes / Q000502:physiology*; D010812:Physical Stimulation; D012107:Research Design; D012684:Sensory Thresholds