Abstract
The Executive Editor and Sage Publishing hereby issue an expression of concern for the following article:
Yao J, Jiang Y, Geng S, Sun L. Protein Kinase D1 Is Increased in Tumor Tissue, Correlates With Advanced Tumor Features and Worse Prognosis of Non-Small Cell Lung Cancer. Technology in Cancer Research & Treatment. 2020;19. DOI:10.1177/1533033820934129
Sage Publishing have been made aware of a PubPeer post that discusses this article. The concerns are that this article appears highly similar to 18 other publications, despite no article having similar authors or institutions.
This expression of concern will remain in place until we have completed our investigation.