AUTHOR= Frontiers Editorial Office TITLE=Retraction: Ppm1b Negatively Regulates 3-Bromopyruvic Acid Induced Necroptosis in Breast Cancer Cells JOURNAL=Frontiers in Oncology VOLUME=11 YEAR=2021 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2021.757083 DOI=10.3389/fonc.2021.757083 ISSN=2234-943X