title: Seasonal and meteorological factors in primary headaches.
authors: A
authors: A
authors: Marrelli
authors: C
authors: C
authors: Marini
authors: M
authors: M
authors: Prencipe
mesh_terms: D000328:Adult; D005260:Female; D006261:Headache / Q000209:etiology*; D006801:Humans; D008297:Male; D008685:Meteorological Concepts; D008875:Middle Aged; D012189:Retrospective Studies; D012621:Seasons