Editor-in-Chief, Robert Amdur, MD, reviews two papers that explain how to improve OAR sparing based on more demanding dosimetry goals. One article is published in the March/April issue of PRO titled “Clinical Use of A Priori Knowledge of OAR Sparing During Radiotherapy Treatment for Oropharyngeal Cancer: Dosimetric and Patient Reported Outcome Improvements”. The other article is In Press at PRO and titled “Stricter Postoperative Oropharyngeal Cancer Radiotherapy Normal Tissue Dose Constraints Are Feasible”.