Circular RNA circ-SMAD7 promoted ovarian cancer cell proliferation and metastasis by suppressing KLF6.

Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Circular RNA circ-SMAD7 promoted ovarian cancer cell proliferation and metastasis by suppressing KLF6, by Y. Zhao, X.-P. Qin, Y.-P. Lang, D. Kou, Z.-W. Shao, published in Eur Rev Med Pharmacol Sci 2019; 23 (13): 5603-5610-DOI: 10.26355/eurrev_201907_18294-PMID: 31298312" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/18294.