Retraction Note: The profile of the key pro-inflammatory cytokines in the serum of patients with CD and their association with the disease severity and activity

Retraction Note to: BMC Gastroenterology (2022) 22:477 https://doi.org/10.1186/s12876-022-02562-w

The Editor has retracted this article. The authors have been unable to provide evidence that ethics approval had been obtained prior to the commencement of the study. In addition, an investigation by the publisher found evidence to suggest that authorship for this article was offered for sale before the article was submitted to the journal. Therefore the Editor-in-Chief has lost confidence in the integrity of this article. Kiril Kirov and Dmitry Bokov disagree to this retraction. Ahmed Al Qteishat has not responded to any correspondence from the Editor about this retraction.