One kind of medical research is often referred to as a clinical trial. In this, volunteers choose to participate to test the safety and effectiveness of certain treatments, drugs or devices. Have you ever heard of a clinical trial to test safety and effectiveness of treatments for eye and vision conditions?
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2014Q3
| 2014Q3 | |
|---|---|
| Yes | 21.8% |
| No | 62.1% |
| Not sure | 16.2% |
["Yes","No","Not sure"]
[{"label":"2014Q3","data":["21.8","62.1","16.2"]}]