I have received royalties, honoraria, research, and travel grants from Abbvie, Genesis Pharma, Eli Lilly, Lundbeck, Merk, Novartis, Pfizer, Roche, Sanofi, and Teva. I have participated in clinical trials for Abbvie, Eli Lilly, Genesis Pharma, Lundbeck, Novartis, and Teva as principal investigator. I have received payment for expert testimony from Pfizer. I am currently the President of the board of the Hellenic Headache Society and co-chairman of the management group of the Headache Panel at the European Academy of Neurology.