We, the Editor and Publisher of Gynaecological Endocrinology, have retracted the following article:
Seyam E, Hasan M, Khalifa EM, Ramadan A, Hefzy E. Evaluation of tumor necrosis factor alpha serum level in obese and lean women with clomiphene citrate-resistant polycystic ovary disease. Gynecol Endocrinol. 2017 Nov;33(11):892–8.
This article has substantial overlap with the following article by the same authors, which is not cited or referenced:
Emaduldin Seyam, Momen Hasan, Eissa M. Khalifa, Ahmad Ramadan & Enas Hefzy. (2017). Evaluation of tumor necrosis factor alpha serum level in obese and lean women with clomiphene citrate resistant polycystic ovary disease. Middle East Fertility Society Journal, 22(3), 193-200.
As verifying the validity of published work is core to the integrity of the scholarly record, we are therefore retracting the article. The authors have been informed.
We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines.
The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’.