13. Female subjects must be of non-childbearing potential. This is defined as surgically sterile (i.e. history of hysterectomy or tubal ligation), or postmenopausal for more than 1 year (no bleeding for 12 consecutive months). If the person is of childbearing potential they must be non-pregnant at the time of enrollment and on the morning of the first day of each study treatment procedure day (a urine pregnancy test will be administered if it has been >30 days since serum pregnancy test for enrollment). The person must also agree to use hormonal or barrier birth control such as implants, injectables, combined oral contraceptives, some intrauterine devices (IUDs), sexual abstinence, or a vasectomized partner.