Billa, E. Kapolla, N. Nicopoulou, S.C. Koukkou, E. Venaki, E. Milingos, S. Antsaklis, A. Adamopoulos, D.A., Metformin administration was associated with a modification of LH, prolactin and insulin secretion dynamics in women with polycystic ovarian syndrome, Gynecological Endocrinology, (25), 427-434, 2009, 0951-3590, 1473-0766