Muñoz, I. Hernández, M.S. Santos, S. Jurado, C. Ruiz, L. Toribio, E. Sotelo, E.M. Guerrero, A.L. Molina, V. Uribe, F. Cuadrado, M.L. Personality traits in patients with cluster headache: a comparison with migraine patients J. headache pain 10.1186/s10194-016-0618-9 2016 2016