21.   A popular type of antidepressant may help to reduce heart attack risk, researchers reported on Monday.

22.   A simple urine test may be able to identify postmenopausal women who have an increased risk of heart disease, researchers reported Monday.

23.   A traditional blend of eight Chinese herbs is starting to show promise as a treatment for advanced prostate cancer, researchers reported Tuesday.

24.   A treatment that had seemed to reduce brain hemorrhages in premature newborns has failed to live up to that promise in a larger test, researchers are reporting today.

25.   A vaccine to prevent urinary tract infections has proved successful in mice and holds promise for people, researchers are reporting on Friday in the journal Science.

26.   About six months ago, researchers also reported that Lidocaine nose drops can help abort a migraine attack.

27.   After four years, the researchers reported, there was no difference between the groups.

28.   All the DNA sequences were identical, the researchers reported.

29.   Boston University researchers reported earlier this month that British patients who had been treated with certain antibiotics were less likely to develop heart disease.

30.   British and French researchers report that some cases of chronic back pain may be caused by new nerves that actually grow into damaged vertebral discs.