Which of these are associated with sulfur dioxide?

Physical exercise has been shown to be protective against dementia.

Which of these has impeded the progress of the polio eradication campaign?

Bed nets are an example of barrier protection

Health care is completely independent of social and behavioral issues.

Which of these is eligible for Medicare?

Quantitative data are numerical.

There have never been any cases of resistance to antiviral drugs, such as Tamiflu.

Dye factory workers are at higher risk for bladder cancer.

Cancer is only one disease that should have been conquered long ago.