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Periodical. Sgaramella, Vittorio, and S. D. Ehrlich. "Use of the T4 Polynucleotides Ligase in The Joining of Flush-Ended DNA Segments Generated by Restriction Endonucleases." European Journal of Biochemistry 86, (1978): 531-537. Article. 7 Images.. European Journal of Biochemistry. Lederberg UI. P252