Eugene D. Frank, MA, RT(R), FASRT, FAEIRS, Retired Director, Radiography Program, Riverland Community College, Austin, MN; Assistant Professor of Radiology, Emeritus, Mayo Clinic College of Medicine, Rochester, MN, Bruce W. Long, MS, RT(R)(CV), FASRT, Director and Associate Professor, Radiologic Imaging and Sciences Programs, Indiana University School of Medicine, Indianapolis, IN, USA and Barbara J. Smith, MS, RT(R)(QM), FASRT, FAEIRS, Instructor, Radiologic Technology, Medical Imaging Department, Portland Community College, Portland, OR, USA