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.
Sjöstrand C, Duvefelt K, Steinberg A, Remahl IN, Waldenlind E, Hillert J.Sjöstrand C, et al. Among authors: steinberg a.Headache. 2006 Nov-Dec;46(10):1518-34. doi: 10.1111/j.1526-4610.2006.00611.x.Headache. 2006.PMID: 17115985
Fourier C, Ran C, Zinnegger M, Johansson AS, Sjöstrand C, Waldenlind E, Steinberg A, Belin AC.Fourier C, et al. Among authors: steinberg a.Cephalalgia. 2018 Mar;38(3):496-502. doi: 10.1177/0333102417698709. Epub 2017 Mar 9.Cephalalgia. 2018.PMID: 28466652
Steinberg A, Fourier C, Ran C, Waldenlind E, Sjöstrand C, Belin AC.Steinberg A, et al.Cephalalgia. 2018 Jun;38(7):1286-1295. doi: 10.1177/0333102417731773. Epub 2017 Sep 14.Cephalalgia. 2018.PMID: 28906127
Ran C, Fourier C, Zinnegger M, Steinberg A, Sjöstrand C, Waldenlind E, Belin AC.Ran C, et al. Among authors: steinberg a.J Headache Pain. 2018 Nov 1;19(1):100. doi: 10.1186/s10194-018-0937-0.J Headache Pain. 2018.PMID: 30382894Free PMC article.