Dr. Hong, UT Southwestern Medical Center (IMAGE) UT Southwestern Medical Center Caption Dr. Arthur Hong's study explores why physicians often order unnecessary radiographic imaging for common headaches and back ailments. Credit UT Southwestern Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.