Metformin administration was associated with a modification of LH, prolactin and insulin secretion dynamics in women with polycystic ovarian syndrome. - Billa, Evangelia; Kapolla, Niki; Nicopoulou, Stamatina C.; Koukkou, Eftychia; Venaki, Evangelia; Milingos, Spyros; Antsaklis, Aristides; Adamopoulos, Dimitrios A. (Gynecological Endocrinology, 2009)