Evolve Resources for Merrill's Atlas of Radiographic Positioning and Procedures, 16th Edition

Jeannean Hall Rollins, MRC, BSRT(R)(CV)(M), Associate Professor, Medical Imaging and Radiation Sciences Department, Arkansas State University, Jonesboro, Arkansas, USA and Tammy Curtis, PhD, RT(R)(CT)(CHES), Professor and Program Director, Radiologic Sciences and School of Allied Health, Northwestern State University, Shreveport, Louisiana, USA