2. Females of child-bearing potential, defined as all women physiologically capable of becoming pregnant, without exceptions, Unless; They meet the following definition of post-menopausal: 12 months of natural (spontaneous) amenorrhea or 6 months of spontaneous amenorrhea with serum FSH levels >40 IU/l, OR; Have past 6 weeks from surgical bilateral oophorectomy with or without hysterectomy OR;