AUTHOR=Meissner Karin TITLE=Placebo, nocebo: Believing in the field of medicine JOURNAL=Frontiers in Pain Research VOLUME=3 YEAR=2022 URL=https://www.frontiersin.org/journals/pain-research/articles/10.3389/fpain.2022.972169 DOI=10.3389/fpain.2022.972169 ISSN=2673-561X