5Smitherman TA, Burch R, Sheikh H, et al. The preval- ence, impact, and treatment of migraine and severe headaches in the United States: a review of statistics from national surveillance studies. Headache, 2013, 53:427 - 436.
6Mulder E J, Van Baal C, Gaist D, et al. Genetic and environmental influences on migraine: a twin study across six countries. Twin research,2003,6:422 -431.
7Eising E, de Vries B, Ferrari MD, et al. van den Maag- denberg AM. Pearls and pitfalls in genetic studies of migraine. Cephalalgia, 2013, 33:614 - 625.
8Schurks M. Genetics of migraine in the age of genome- wide association studies. The journal of headache and pain, 2012,13:1 - 9.
9Headache Classification Committee of the International Headache S. The Intemational Classification of Headache Disorders, 3rd edition (beta version). Cephalalgia, 2013, 33:629 - 808.
10Russell MB, Ducros A. Sporadic and familial hemipl- egic migraine: pathophysiological mechanisms, clinical characteristics, diagnosis, and management. Lancet neurology, 2011, 10:457 -470.