Background: Magnetic resonance sialography (MRS) can be used to clearly examine the main duct of parotid and is widely applied in diagnosis chronic obstructive parotitis (COP). However, there are few studies on classification, treatment options prognosis COP using MRS.

Lakhan et al elegantly summarize a large body of neu-roimaging data obtained from migraine patients in their paper " Structural and functional neuroimaging in migraine: Insights from 3 decades of research. " In doing so, they separated out aura, ictal, and interictal imaging data. 1 In the methods section, the authors state that from a literature search up to May 2012, " [A] review of all title...