Coppola Gianluca, Pierelli Francesco, Schoenen Jean
G.B. Bietti Eye Foundation-IRCCS, Department of Neurophysiology of Vision and Neurophthalmology, Rome, Italy "Sapienza" University of Rome, Polo Pontino - I.C.O.T., & IRCCS-Neuromed, Pozzilli (IS), Italy Headache Research Unit, University Department of Neurology & GIGA-Neurosciences, Liège University, Liège, Belgium.
Pain. 2010 May;149(2):407-408. doi: 10.1016/j.pain.2010.03.004. Epub 2010 Mar 21.