Louis B. Harrison, MD, FASTRO (image) American Society for Radiation Oncology Share Print E-Mail Caption This is Louis B. Harrison, MD, FASTRO, 2017 ASTRO Gold Medalist. Credit Louis B. Harrison, MD, FASTRO/American Society for Radiation Oncology (ASTRO) Usage Restrictions Image may only be used with appropriate caption or credit. Share Print E-Mail 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.