3. Women who are not surgically sterilized (i.e. bilateral tubal ligation, bilateral or two unilateral oophorectomies, hysterectomy) or not using adequate contraceptive methods (i.e. oral contraceptives, approved hormonal implant, intrauterine device, diaphragm with spermicide, condom with spermicide) or not postmenopausal (> 1 year since their last menstrual period).