Title Colour Legend:
Green - Topic summary is available.
Orange - Topic summary is being compiled.
Red - Topic summary has no current systematic review available.

Metaphor

We have not found any systematic reviews on this topic that meet our inclusion criteria.

Pending enough primary studies, we invite reviews on this topic to be conducted. Alternatively, we will endeavour to conduct our own review to fill this gap in the evidence.

Page last updated: 9:03  3 June 2013

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