An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Larsen EL, Ashina H, Iljazi A, Al-Khazali HM, Seem K, Ashina M, Ashina S, Schytz HW.Larsen EL, et al. Among authors: ashina m, ashina s, ashina h.J Headache Pain. 2019 Oct 21;20(1):98. doi: 10.1186/s10194-019-1051-7.J Headache Pain. 2019.PMID: 31638888Free PMC article.