For the study, researchers surveyed 359 doctors who saw 10 or more adolescents a week.

For the study, researchers surveyed 336 small business owners in the Midwest.

The researchers surveyed 304 telemarketers and 187 members of a control group.

The researchers also surveyed 771 workers about their health.

Researchers surveyed 5,300 households representing 13,534 people in 2008, a response rate of 42%.

Some researchers have surveyed thousands of teen-agers to learn what they believe about themselves and their families.

The researchers also surveyed the students and their families about television, computer and video game use.

Researchers surveyed more than 31,000 health professionals, aged 53-90, about their sexual function.

Researchers surveyed 6,000 textbooks and curriculums in more than 45 countries.

The researchers surveyed almost 600 residents from Michigan, asking about experiences with pain and what they did to try to relieve it.