Expression of Concern: Efficacy of combined metformin-letrozole in comparison with bilateral ovarian drilling in clomiphene-resistant infertile women with polycystic ovarian syndrome.

Autor: Elgafor IA; Department of Obstetric and Gynecology, Faculty of Medicine, Zagazig University, Zagazig, Egypt. IbrahimSharkwy@yahoo.com.

Publikováno v: Archives of gynecology and obstetrics [Arch Gynecol Obstet] 2024 Sep; Vol. 310 (3), pp. 1773.