Antonaci Fabio, Sjaastad Ottar, Fredriksen Torbjorn A
Headache Centre, C. Mondino National Institute of Neurology Foundation, IRCCS, Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy.
Department of Neurology, St. Olavs Hospital, Trondheim University Hospitals, NTNU, Trondheim, Norway.
J Headache Pain. 2015 Dec;16(Suppl 1):A35. doi: 10.1186/1129-2377-16-S1-A35.