Endotoxin-induced systemic inflammation activates microglia: [11C]PBR28 positron emission tomography in nonhuman primates. - Jonas Hannestad; Jean-Dominique Gallezot; Thomas Schafbauer; Keunpoong Lim; Tracy Kloczynski; Evan D. Morris; Richard E. Carson; Yu-Shin Ding; Kelly P. Cosgrove (NeuroImage, 2012)