1. should mitigate the risk of failure to detect able to understand and predict similarities
2. a carcinogenic hazard. and differences in responses among species It is not clear whether the use of including humans on the basis of cellular
3. another species such as the mouse greatly or gene function and studies of inter
4. improves our ability to use results from rats species differences at the cellular level
5. to identify human Iung cancer hazards. should be encouraged. At present however