Nutri̤̣o e Enxaqueca РArtigo 9

Effect of Vitamin D Deficiency on the Frequency of Headaches in Migraine Background and Purpose: The risk of vitamin D deficiency varies with the season. The frequency of vitamin D deficiency in migraine patients and its association with migraine are unclear. Methods:  We retrospectively evaluated first-visit migraine patients between January 2016 and May 2017, and...