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This work was supported in part by an Atomic Energy Commission grant, Contract AT (30–1) 1017 and in part by a grant from the National Science Foundation, G-9881. Funds for travel for one of us (K. E.) were provided by the United States Educational Commission in the Federal Republic of Germany.
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Esser, K., De Moss, J.A. & Bonner, D.M. Reverse mutations and enzyme heterogeneity. Zeitschrift für Vererbungslehre 91, 291–299 (1960). https://doi.org/10.1007/BF00890040
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DOI: https://doi.org/10.1007/BF00890040