Retraction notice to "MiR-650 regulates the proliferation, migration and invasion of human oral cancer by targeting Growth factor independent 1 (Gfi1)" [Biochimie 156 (2018) 69-78].

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Following concerns raised by Dr. E. Bik and an anonymous reader, the journal conducted an investigation and found evidence that there had been improper manipulation and duplication of images in Figs. 2A, 5C and 6C, as shown by partial overlap between images representing different experiments. An anonymous reader has also drawn attention to flow-cytometry data in Fig. 1 similar to previously published data from a different laboratory (Med Sci Monit, 2018; 24: 5874-5880 DOI: 10.12659/MSM.909682, Fig. 2B). After raising the complaint with the authors, the corresponding author agreed that the paper needed to be retracted. The authors apologise for any confusion that may have arisen from their article.