Prevalence of headache in an elderly population: attack frequency, disability, and use of medication

Prencipe M, Casini AR, Ferretti C, Santini M, Pezzella F, Scaldaferri N, Culasso F. Prevalence of headache in an elderly population: attack frequency, disability, and use of medication. J Neurol Neurosurg Psychiatry. 2001; 70(3): 377-81.