[Method for the experimental study of factors modifying carcinogenesis].

Research in factors modifying carcinogenesis is closely associated with studies on complex multifactorial systems. Mathematical methods of planning multifactorial experiments should be used which assures a higher reliability of the results and elicits additional information. An analysis of the data on the modifying effect of aniline, sodium alkylsulfate and lead nitrite on nitrosomethylamine-induced carcinogenesis carried out on the basis of the newly-developed method showed its advantages over the existing ones.