A Study of Controlled Ovarian Stimulation with Clomiphene Citrate or Letrozole in Combination with Gonadotropins and IUI in Unexplained Infertility.

Aim: To compare the effect of clomiphene citrate (CC) + human menopausal gonadotropin (hMG) with letrozole + hMG on size, number of follicles, endometrial thickness, serum levels of oestradiol and progesterone and pregnancy rate.

Settings And Design: Non-randomised interventional study.

Patients And Methods: A total number of 60 patients in the age group of 20-35 years with unexplained infertility were divided into two groups, 30 in each.