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Periodical. Hehlmann, R., D. W. Kufe, and Sol Spiegelman. "RNA in Human Leukemic Cells Related to the RNA of a Mouse Leukemia Virus." Proceedings of the National Academy of Sciences of the United States of America 69, 2 (February 1972): 435-439. Article. 5 Images.. Proceedings of the National Academy of Sciences of the United States of America