Professor Ito reviewed the study, which had been commissioned by the Japanese government, and which indicates that the addition of BHA to the diet of Fischer F 344 rats caused hyperplasia, papillomas and squamous call carcinomas of the forestomach of the rats.
Professor Ito gennemgik undersøgelsen, som var blevet iværksat af den japanske regering, og som tyder på, at tilsætningen af BHA til foderet for Fischer F 344 rotter forårsagede hyperplasi, papillomer og pladeepitelkarcinomer i formaven hos rotter.