1. Department of Molecular and Medical Pharmacology, Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA.
2. Los Angeles Biomedical Research Institute at Harbor–UCLA Medical Center, Torrance, CA 90502, USA.
3. UCLA–Department of Energy (DOE) Institute for Genomics and Proteomics, Los Angeles, CA 90095, USA.