1.   Because of the difficulty and complexity of atmospheric science, Serafin said, many researchers emphasize the use of computer models and theoretical work.

2.   AIDS researchers have long emphasized the difficulties in separating the risk of oral sex from other acts of intercourse.

3.   But based on animal data, researchers emphasize that parthenotes are not true embryos.

4.   But the researchers emphasize that the cause of autism is still unknown.

5.   But the researchers emphasized that garlic is no panacea, nor should it be relied upon as a primary treatment.

6.   But the study leaves many questions unanswered, and the researchers emphasize that their work is just beginning.

7.   But the researchers emphasized that the problem is unlikely if the phones are used properly.

8.   In a multicenter study designed to prevent obesity in adolescent black girls, researchers are emphasizing movement.

9.   Lyme disease researchers emphasized, however, that previous studies had shown that most people with the infection got better on their own, even without taking antibiotics.

10.   Researchers emphasized that taste is only one of the factors in food choices, however.