AUTHOR=Hartrick Craig T. TITLE=Exploiting Injury-Induced Peripheral Opioid Receptor Changes in Novel Analgesic Development for Chronic Pain JOURNAL=Frontiers in Pain Research VOLUME=3 YEAR=2022 URL=https://www.frontiersin.org/journals/pain-research/articles/10.3389/fpain.2022.883164 DOI=10.3389/fpain.2022.883164 ISSN=2673-561X