HIGHLIGHTS
SUMMARY
The level of evidence was considered moderate if the results, in at least 66% of the studies point in the same direction and were high quality studies, or if in at least 75% of the studies point in the same direction and were moderate quality studies. Two high quality studies reported significantly better results in the SNAG group and one moderate quality study reported similar results in the SNAG and control groups. One high quality and Two moderate quality studies reported significantly better results in the SNAG group and two moderate quality studies reported . . .
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