1.   There is also a need for comparison studies to see what differences there are between the experimental situation and the classroom.

2.   We know this as a paired comparison study.

3.   He also said the comparison study between the old and new OsteoGraf products would be easy to perform.

4.   He has no room for comparison studies that show low murder rates in gun-controlling countries like Canada.

5.   Nonetheless, demand for the procedure grew, and many women refused to enter comparison studies because they wanted transplants.

6.   The ethics of human research bar using human volunteers in a comparison study unless researchers honestly cannot say from available data which treatment is likely to prove better.

7.   A comparison study of ReoPro and Agrastat is under way.

8.   In September, Hayden began another comparison study to accumulate the kind of detailed data needed by the FDA to decide whether to approve pleconaril pills for cold.

9.   In the comparison study, the organic and conventional farms had the same tillage, crop rotation and crop varieties.