Viken Janina, Bendtsen Lars, Hansen Klaus, Katholm Morten, Laursen Henning, Hastrup Nina, Gideon Peter, Ashina Messoud
Department of Neurology, Glostrup Hospital, 2600, Glostrup, Denmark.
J Headache Pain. 2011 Jun;12(3):381-3. doi: 10.1007/s10194-011-0324-6. Epub 2011 Mar 31.