1. Department of Radiology, Emory University School of Medicine, 1701 Uppergate Dr., C5018, Atlanta, GA, USA
2. Molecular Imaging & Computed Tomography, GE Healthcare, PO Box 414, W1190, Milwaukee, WI, USA
3. CT & X-ray Systems, Global Research Center, GE, One Research Circle, KW-C1309, Niskayuna, NY, USA