Competing interests
Headache, JHF, Pain, Stroke, Migraine, Wolff's Headache, Neurological Disorders
MINOR, MIGRAINE, STROKE, NEUROLOGICAL DISORDERS
WY, and DWA are employees and minor stockholders of Eli Lilly and Company. JHF is a former employee of Eli Lilly and Company and was associated with Eli Lilly till the time of manuscript submission. Her current affiliation is Agios. XM is an employee of Tech Data Services Company and performs contracted work for Eli Lilly and Company. SB was an employee of Eli Lilly and Company during the conduct of the study. DCB has received research support from Amgen, the Food and Drug Administration and the National Headache Foundation, and is a consultant to Allergan, Amgen, Eli Lilly, Lundbeck and Teva. She is a section editor for Current Pain and Headache Reports. RBL has received funding from Alder Biopharmaceuticals, Allergan, American Academy of Neurology (other activities), American Headache Society, Amgen, Autonomic Technologies (speaking and teaching), Avanir Pharmaceuticals, Biohaven Pharmaceuticals, Boston Scientific, Dr. Reddy's Laboratories, ElectroCore, Eli Lilly and Company, eNeura Therapeutics, GlaxoSmithKline, Headache (other activities) (personal fees), Informa (speaking and teaching), Merck & Co, Inc., Migraine Research Foundation, National Headache Foundation, Neurology (board membership) (serves on editorial board), National Institute on Aging (other activities), National Institute of Neurological Disorders and Stroke (other activities), Novartis (speaking and teaching) (other activities) (personal fees), Pernix, Teva Pharmaceuticals, Vedanta, and Wolff's Headache 7th and 8th Edition, Oxford University Press, 2009.