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. Rosenberg, Martin, Shoshana Segal, Edward L. Kuff, and Maxine Singer. "The Nucleotide Sequence of Repetitive Monkey DNA Found in Defective Simian Virus 40." Cell 11, 4 (August 1977): 845-857. Article. 13 Images.. Cell