<p>“Yes” indicates a low risk of bias, “No” indicates a high risk of bias, and “Unclear” indicates either a lack of information or uncertainty over the potential for bias.</p
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
<p>Two studies were identified as being of a higher design quality. Three studies were identified as...
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
“+” = low risk of bias; “?” = unclear risk of bias; and “-” = high risk of bias.</p
<p>Legend: Red (-) = high risk of bias; Yellow (?) = unknown risk of bias; Green (+) = low risk of...
<p>H, high risk; L, low risk; U, unclear risk.</p><p>Risk of Bias Assessment.</p
Supplement Figure S1 Risk of bias graph. Risk of bias summary. “+” means low risk; “?” means unclear...
<p>Key: + Low risk of bias;? Unclear risk of bias; − High risk of bias</p><p>Risk of Bias.</p
<p>Risk of bias. Red (−): high risk of bias; Yellow (?): unknown risk of bias; Green (+): low risk o...
<p>(A) Risk of bias graph: review authors’ judgments about each item’s risk of bias item presented a...
<p><i>Note</i>. +: low risk of bias;?: unclear risk of bias;-: high risk of bias.</p><p>Risk of bias...
<p>Based on the Cochrane Collaboration’s tool for assessing risk of bias, + indicates low risk of bi...
<p>Across trials (n = 15), information is either from trials at a low risk of bias (green), or from ...
<p>Note: Low risk of bias is indicated by green colour, moderate risk of bias by yellow colour and h...
<p>Red = High risk of bias. Yellow = Moderate risk of bias. Green = Low risk of bias. White = Unknow...
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
<p>Two studies were identified as being of a higher design quality. Three studies were identified as...
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
“+” = low risk of bias; “?” = unclear risk of bias; and “-” = high risk of bias.</p
<p>Legend: Red (-) = high risk of bias; Yellow (?) = unknown risk of bias; Green (+) = low risk of...
<p>H, high risk; L, low risk; U, unclear risk.</p><p>Risk of Bias Assessment.</p
Supplement Figure S1 Risk of bias graph. Risk of bias summary. “+” means low risk; “?” means unclear...
<p>Key: + Low risk of bias;? Unclear risk of bias; − High risk of bias</p><p>Risk of Bias.</p
<p>Risk of bias. Red (−): high risk of bias; Yellow (?): unknown risk of bias; Green (+): low risk o...
<p>(A) Risk of bias graph: review authors’ judgments about each item’s risk of bias item presented a...
<p><i>Note</i>. +: low risk of bias;?: unclear risk of bias;-: high risk of bias.</p><p>Risk of bias...
<p>Based on the Cochrane Collaboration’s tool for assessing risk of bias, + indicates low risk of bi...
<p>Across trials (n = 15), information is either from trials at a low risk of bias (green), or from ...
<p>Note: Low risk of bias is indicated by green colour, moderate risk of bias by yellow colour and h...
<p>Red = High risk of bias. Yellow = Moderate risk of bias. Green = Low risk of bias. White = Unknow...
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
<p>Two studies were identified as being of a higher design quality. Three studies were identified as...
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
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