Duration and degree of cyclosporin induced P-glycoprotein inhibition in the rat blood-brain barrier can be studied with PET. - Stina Syvänen; Gunnar Blomquist; Margareta Sprycha; A. Urban Höglund; Magnus Roman; Olof Eriksson; Margareta Hammarlund-Udenaes; Bengt Långström; Mats Bergström (NeuroImage, 2006)