Neoplasm Studies. IX. The Effects in Tissue Culture of N,N-Dimethyl-p-Phenylenediamine on Rat Liver Tumors Induced by p-Dimethylaminoazobenzene^*

This investigation was aided by The International Cancer Research Foundation, the Memorial Hospital, and The Lilly Research Laboratories of Eli Lilly and Company. Acknowledgements are made to Dr. C. P. Rhoads and Mr. C. J. Kensler, of Memorial Hospital, for their cooperation, and to Mr. C. G. Grand, of this laboratory, for his assistance in the cytological studies and the photomicrography.