<p>A flowchart identifying the studies that were included in the meta-analysis.</p
<p>Flowchart of studies included in meta-analysis. RCT, randomized controlled trial.</p
<p>Flow chart of selection of studies for inclusion in the present meta-analysis.</p
<p>Flow chart demonstrating the process for study inclusion in the meta-analysis.</p
<p>Flowchart describing the selection of studies included in the meta-analyses.</p
<p>Flowchart showing the selection of studies for inclusion in the meta-analysis.</p
<p>The selection flowchart of the studies included in the present meta-analysis.</p
<p>Flow chart showing the procedure for identifying the studies that were included in the meta-analy...
<p>Flow chart demonstrating those studies that were processed for inclusion in the meta-analysis.</p
<p>Flow chart demonstrating those studies that were processed for inclusion in the meta-analysis.</p
<p>Flow chart demonstrating those studies that were processed for inclusion in the meta-analysis.</p
<p>A flowchart showing the selection of the randomized controlled trials for our meta-analysis.</p
<p>Flow chart of study identification, evaluation and inclusion in the meta-analysis.</p
<p>Flow chart of the selection of studies for inclusion in the meta-analysis.</p
<p>Flowchart of the selection of the 8 eligible studies in the meta-analysis.</p
<p>A flow chart summarizing the study selection process for this meta-analysis.</p
<p>Flowchart of studies included in meta-analysis. RCT, randomized controlled trial.</p
<p>Flow chart of selection of studies for inclusion in the present meta-analysis.</p
<p>Flow chart demonstrating the process for study inclusion in the meta-analysis.</p
<p>Flowchart describing the selection of studies included in the meta-analyses.</p
<p>Flowchart showing the selection of studies for inclusion in the meta-analysis.</p
<p>The selection flowchart of the studies included in the present meta-analysis.</p
<p>Flow chart showing the procedure for identifying the studies that were included in the meta-analy...
<p>Flow chart demonstrating those studies that were processed for inclusion in the meta-analysis.</p
<p>Flow chart demonstrating those studies that were processed for inclusion in the meta-analysis.</p
<p>Flow chart demonstrating those studies that were processed for inclusion in the meta-analysis.</p
<p>A flowchart showing the selection of the randomized controlled trials for our meta-analysis.</p
<p>Flow chart of study identification, evaluation and inclusion in the meta-analysis.</p
<p>Flow chart of the selection of studies for inclusion in the meta-analysis.</p
<p>Flowchart of the selection of the 8 eligible studies in the meta-analysis.</p
<p>A flow chart summarizing the study selection process for this meta-analysis.</p
<p>Flowchart of studies included in meta-analysis. RCT, randomized controlled trial.</p
<p>Flow chart of selection of studies for inclusion in the present meta-analysis.</p
<p>Flow chart demonstrating the process for study inclusion in the meta-analysis.</p
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