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Periodical. Lee, Eui Hum, Arthur Kornberg, Masumi Hidaka, Takehiko Kobayashi, and Takashi Horiuchi. "Escherichia coli Replication Termination Protein Impedes the Action of Helicases." Proceedings of the National Academy of Sciences of the United States of America 86, (December 1989): 9104-9108. Article. 5 Images.. Proceedings of the National Academy of Sciences of the United States of America