Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.
In the Research News article, "Drug found to help heart attacksurvivors" (13 Nov., p. 774) two percentages were transposed.The article should have stated that 9.5 percent of the placebogroup died, but that only 7.0 percent of the propranolol groupdied after 2 years of follow-up.