Appendix Figure 2. Trial Flow Diagram of Studies Evaluated for Inclusion in Each Key Question (KQ)

This figure has 4 rows of boxes to show the flow of studies evaluated for each Key Question (KQ).  Go to Text Description [D] for details.

[D] Select for Text Description.

All abstracts were reviewed for relevance to other KQs. Articles from experts or reference lists were also reviewed if relevant.

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