21.   It had been established that estrogen alone, while highly effective against cardiovascular problems, causes an increase in uterine cancer.

22.   It is not clear how long the protection lasts, and tamoxifen may cause blood clots or uterine cancer in some women.

23.   Local military doctors initially thought she had contracted uterine cancer, but the tests were negative.

24.   None were taking estrogen supplements, which are known to retard osteoporosis but may pose other risks, such as breast and uterine cancer.

25.   Normally, she said, such mice do not have uterine cancer.

26.   Progestin had already been shown in earlier studies to reduce the higher risk of uterine cancer that comes with estrogen therapy alone.

27.   Raloxifene is a treatment for osteoporosis that also has side effects, but does not appear to increase uterine cancer rates.

28.   Progestin is added to estrogen to ward off the threat of uterine cancer in post-menopausal women who have not undergone hysterectomy.

29.   Researchers said both increase the risk of uterine cancer and blood clots, but trial participants are monitored and the results for cancer trackers could be invaluable.

30.   Shortly before his first book was published, she found out she had uterine cancer.