AUTHOR= Frontiers Editorial Office 

TITLE=Retraction: Combination of Tanshinone IIA and Cisplatin Inhibits Esophageal Squamous Cell Carcinoma by Down-Regulating NF-kB/COX-2/VEGF Pathway

JOURNAL=Frontiers in Oncology

VOLUME=11

YEAR=2021

URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2021.721658

DOI=10.3389/fonc.2021.721658

ISSN=2234-943X