title: Geomagnetic activity and the severity of the migraine attack.
mesh_terms: D000293:Adolescent; D000328:Adult; D002940:Circadian Rhythm; D003359:Cosmic Radiation / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008280:Magnetics; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000209:etiology*; D010147:Pain Measurement; D014887:Weather