Temperature Dependence of the Activity of the Antitumor Factor in the Common Clam

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Science  02 Oct 1964:
Vol. 146, Issue 3640, pp. 77-78
DOI: 10.1126/science.146.3640.77


The tumor inhibiting action of extracts of the common clam, Mercenaria mercenarius, is very low in the winter and can be restored to the high summer values by heat.