Mandell DM, Matouk CC, Farb RI, Krings T, Agid R, terBrugge K, Willinsky RA, Swartz RH, Silver FL, Mikulis DJ. Vessel wall MRI to differentiate between reversible cerebral vasoconstriction syndrome and central nervous system vasculitis: preliminary results. Stroke. 2012 Mar; 43(3):860-2.