Retraction notice to “Tumor necrosis factor alpha versus LH and androstendione as a reliable predictor of spontaneous ovulation after laparoscopic ovarian drilling for women with clomiphene citrate resistance polycystic ovarian disease” [Eur. J. Obstet. Gynecol. Reprod. Biol. 222 (2018) 126–133] - Retraction Notice | RetractBase