Concurrent CBF and CMRGlc changes during human brain activation by combined fMRI-PET scanning. - Andrew B. Newberg; Jiongjiong Wang; Hengyi Rao; Randel L. Swanson; Nancy A. Wintering; Joel S. Karp; Abass Alavi; Joel H. Greenberg; John A. Detre (NeuroImage, 2005)