Previous research has shown that he lived in the 15th century.

Previous research has looked at whether or not a mother was working and how this affected her children.

Whether the state will commission a study or try an analysis of previous research remains to be seen.

But it is more than just a listing of previous research.

These are abstract models, not ways to process the previous research.

However, previous research has shown that the mass is not likely to be extremely small.

Previous research has found that four out of five people start using at least one new drug after becoming homeless.

The report's conclusions were based on analysis of previous research, not any current surveys by the center.

They cite previous research that found even the correlation was low.

But previous research suggested that they might also affect the risk of developing cancer.