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.
Antonaci F, Valade D, Lanteri-Minet M, Láinez JM, Jensen R, Steiner TJ; European Headache Federation and Lifting The Burden: the Global Campaign to Reduce the Burden of Headache Worldwide.Antonaci F, et al.Intern Emerg Med. 2008 Oct;3 Suppl 1:S25-8. doi: 10.1007/s11739-008-0189-0.Intern Emerg Med. 2008.PMID: 18792808
Sacco S, Lampl C, Maassen van den Brink A, Caponnetto V, Braschinsky M, Ducros A, Little P, Pozo-Rosich P, Reuter U, Ruiz de la Torre E, Sanchez Del Rio M, Sinclair AJ, Martelletti P, Katsarava Z; Burden and Attitude to Resistant and Refractory (BARR) Study Group.Sacco S, et al.J Headache Pain. 2021 May 18;22(1):39. doi: 10.1186/s10194-021-01252-4.J Headache Pain. 2021.PMID: 34006218Free PMC article.