Attribution:

• Barad M "Stanford Hospital's Meredith Barad, MD, Discusses Migraine Headaches" https://www.youtube.com/watch?v=XJWMKkRdxZI (6/2011)

• Stanford Health Care YouTube Channel:  https://www.youtube.com/channel/UCl_mlar6gQ3z94OLr7YPkbA