UCLA Laboratory of NeuroImaging, David Geffin School of Medicine, Los Angeles, CA USA.|UCLA Laboratory of NeuroImaging, David Geffin School of Medicine, Los Angeles, CA USA.|UCLA Laboratory of NeuroImaging, David Geffin School of Medicine, Los Angeles, CA USA.|UCLA Laboratory of NeuroImaging, David Geffin School of Medicine, Los Angeles, CA USA.|UCLA Laboratory of NeuroImaging, David Geffin School of Medicine, Los Angeles, CA USA.|UCLA Laboratory of NeuroImaging, David Geffin School of Medicine, Los Angeles, CA USA.