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.](aaarapf2.gif)
[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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