Three toxicologists wrote, "The possibility of unexpected, accidental changes in genetically engineered plants justifies a limited traditional toxicological study."

Pharmacological and toxicological studies having been completed, we were about to start clinical trials - when Lederle's Diamox broke into the market.

The mummichog is a popular research subject in embryological, physiological, and toxicological studies.

The metabolic stability and the reactivity of a library of candidate drug compounds have to be assessed for drug metabolism and toxicological studies.

As in the toxicological studies, there were no serious adverse reactions or hormone related side effects reported.

The statement said results of thorough toxicological studies being conducted in an effort to pinpoint the cause of death should be available later this week.

Recent epidemiological and toxicological studies continued to suggest a possible link between bioaerosol exposure and sick building syndrome, but methodological limitations remained in these studies.

Ms. Montgomery: Fourteen major chemical companies around the world are working jointly on toxicological studies of possible substitutes.

The safe conclusions are based on a detailed review of a large body of information, including hundreds of toxicological and clinical studies.

Dr. Oser was credited with alerting the food industry in the 1950's to the need for toxicological studies and safety evaluations.