21.   But research found that when science education got more formal, in about the third grade, children started to tune out and say it was boring.

22.   But the research found just the opposite.

23.   But the research found that regular players of all ages were not affected by slowed reactions, showing that keeping mentally active may help maintain mental alertness.

24.   Children and adolescents, as a result, are taking in bigger doses of THC, which recent research has found lingers in body fat cells for days.

25.   Chevy picked the event because its research has found a high percentage of sport utility owners like country music.

26.   During the summer months, the research found, their range of movement was only about half a mile.

27.   Earlier research found a similar effect in women.

28.   Earlier research had found some correlation between forest damage and heavy-metal levels in the atmosphere.

29.   Earlier research had found that the drug appeared to cause a surge of serotonin.

30.   Earlier research found that even as many societies became wealthier in recent decades, they did not become happier.