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Effect of sodium fluoride on tumor growth

Recently a report (1) from this laboratory indicated that NaBr in relatively low concentrations accelerated the growth of mouse and egg cultivated tumor tissue. This result occurred when the drug was introduced by way of the drinking water in mice, by injection over the embryonic membranes of eggs inoculated with tumor tissue, and when added to tumor tissue suspensions before implantation into eggs or mice. Preliminary tests with NaI and NaF give evidence that low levels of these halides also ac