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. 2014 Nov 6;2014(11):CD006904. doi: 10.1002/14651858.CD006904.pub3
Indicate if: any data were obtained from the primary author; if results were estimated from graphs etc; or calculated by you using a formula (this should be stated and the formula given).
In general if results not reported in paper(s) are obtained this should be made clear here to be cited in review.