Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Lederberg's speech, which dealt with contemporary views of the body in science and medicine, was delivered in Philadelphia. The symposium was entitled, "Science and Medicine: Changing Images of the Body".