1. Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas;
2. Department of Biological Sciences, Notre Dame Integrated Imaging Facility, Notre Dame, Indiana;
3. Department of Pediatrics Center for Cystic Fibrosis and Airways Disease Research, Emory University, Atlanta, Georgia;
4. Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia; and
5. Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin