United States. Federal Security Agency. National Heart Institute
United States. Public Health Service. National Heart Institute
United States. National Institutes of Health. National Heart Institute
Notes:
The National Heart Institute was established in 1948. In 1969 the name was changed to National Heart and Lung Institute and in 1967 to National Heart, Lung, and Blood Institute. Works by these bodies are entered under the name of the heading used at the time of publication.