Experiments with some mouse tumors and leukemias.

Abstract

We have considered data positive when the probability that differ ence in tumor weight or survival time between treated and control mice oc curred by chance was less than 1 in 20 (p <.05). All other data are considered inconclusive or negative. Clearly negative data are presented here. Some of the compounds reported have produced consistently positive results in other tumor systems. Those data are reported elsewhere. We have carried all tumor strains in ascites form. Ascites fluid has been harvested, diluted with Ringer's solution or saline, and injected in-