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, 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 and Ruth Ann Ehrlich, RT(R), Radiology Faculty (Retired), Western States Chiropractic College, Portland, OR; Adjunct Faculty, Portland Community College, Portland, OR