<qa>  What is the name of the subject that must be postmenopausal for at least- Subjects must either be postmenopausal for at least 1 year,have had a hysterectomy or tubal ligation, be otherwise incapable of pregnancy or have practiced one of the following methods of contraception for at least one month prior to enrollment: hormonal contraceptives, spermicide and barrier, intrauterine device, spousalpartner sterility or be practicing abstinence and agree to continue abstinence or to use an acceptable method of contraception as listed above should sexual activity commence. 