Efficacy of eletriptan in migraine-related functional impairment: functional and work productivity outcomes.
Silberstein SD, Cady RK, Sheftell FD, Almas M, Parsons B, Albert KS. Efficacy of eletriptan in migraine-related functional impairment: functional and work productivity outcomes. Headache. 2007 May; 47(5):673-82.