8. Patients must not have received estrogens, antiestrogens, selective estrogen receptor modulators, aromatase inhibitors, or hormonal forms of contraception within the past month with the following exceptions: Women under the age of 35 may have had recent use of oral contraceptive pills but these must be discontinued prior to randomization. In addition, for women of all ages, up to two months of hormonal treatments for oocyte collection for the purposes of in vitro fertilization and cryopreservation of embryos or oocytes is permitted provided these treatments are complete prior to randomization.