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.
Periodical. Berg, Paul, David Baltimore, Herbert W. Boyer, Stanley N. Cohen, Ronald W. Davis, David S. Hogness, Daniel Nathans, Richard O. Roblin, James D. Watson, Sherman Weissman, Norton D. Zinder, and National Academy of Sciences (U.S.). "Potential Biohazards of Recombinant DNA Molecules" [Letter to the Editor of Science]. Science 185, 4148 (26 July 1974): 303. Article. 1 Image.. Science