CT Clinical Innovation Center and X-ray Imaging Core, Department of Radiology, Mayo Clinic, 200 First Street S.W., Rochester, MN 55905

University of Colorado School of Medicine, 12401 E. 17th Avenue, MS L954, Aurora, CO 80045

Advanced X-ray Tomographic Imaging (AXTI) Lab, Department of Medical Imaging, Radboud University Medical Center, P.O. Box 9101 (Route 766), 6500 HB Nijmegen, The Netherlands

Johns Hopkins University School of Medicine, JHOC, Suite 4264, 601 N Caroline Street, Baltimore, MD 21287-0856