"The 2016 CDC Opioid Prescribing Guideline for Chronic Pain: Unintended Consequences and a Revision on the Horizon," by Beth Darnall, PhD, Associate Professor, Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, California. From ASRA News, February 2021. See original article at www.asra.com/asra-news for figures and references. This material is copyrighted.