High: Image clintrdfu4.jpgFurther research is very unlikely to change the confidence in the estimate of effect.
Moderate: Image clintrdfu5.jpgFurther research may change the confidence in the estimate of effect and may change the estimate.
Low: Image clintrdfu2.jpgFurther research is likely to change the confidence in the estimate of effect and is likely to change the estimate.
Insufficient: Image clintrdfu3.jpgResearch is either unavailable or does not permit estimation of a treatment effect.

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