"NINDS Migraine Information Page". National Institute of Neurological Disorders and Stroke, National Institutes of Health. Archived from the original on 2016-02-16. Retrieved 2007-06-25. {{cite web}}: Unknown parameter |= ignored (help)
web.archive.org
"NINDS Migraine Information Page". National Institute of Neurological Disorders and Stroke, National Institutes of Health. Archived from the original on 2016-02-16. Retrieved 2007-06-25. {{cite web}}: Unknown parameter |= ignored (help)