<p>Yellow circles, green circles, and red circles indicate “unclear risk of bias,” “low risk of bias,” and “high risk of bias,” respectively.</p
“+” = low risk of bias; “?” = unclear risk of bias; and “-” = high risk of bias.</p
<p>Note: Low risk of bias is indicated by green colour, moderate risk of bias by yellow colour and h...
The items were judged as “low risk” “unclear risk” or “high risk”, where red means “high risk”, gree...
Risk of bias summary (red, yellow, and green solid circle represents high risk of bias, some concern...
<p>Green circle indicates low risk of bias, red circle indicates high risk of bias, yellow circle in...
<p>Red stands for high risk of bias, green stands for low risk of bias and yellow stands for unclear...
<p>Green (+) symbols represent low risk of bias for the specific criteria for the included study. Ye...
<p>Review authors' judgement about each risk of bias item for each included study. Red, green, and y...
<p>Green = low risk of bias, Yellow = unclear risk of bias, Red = high risk of bias.</p
<p>Red = High risk of bias. Yellow = Moderate risk of bias. Green = Low risk of bias. White = Unknow...
<p>Blue = low risk of bias; Red = high risk of bias; Yellow = unclear risk of bias. Methodological q...
Red circle = High risk of bias, orange circle = moderate risk of bias, green circle = low risk of bi...
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
<p>Risk of bias. Red (−): high risk of bias; Yellow (?): unknown risk of bias; Green (+): low risk o...
“+” = low risk of bias; “?” = unclear risk of bias; and “-” = high risk of bias.</p
<p>Note: Low risk of bias is indicated by green colour, moderate risk of bias by yellow colour and h...
The items were judged as “low risk” “unclear risk” or “high risk”, where red means “high risk”, gree...
Risk of bias summary (red, yellow, and green solid circle represents high risk of bias, some concern...
<p>Green circle indicates low risk of bias, red circle indicates high risk of bias, yellow circle in...
<p>Red stands for high risk of bias, green stands for low risk of bias and yellow stands for unclear...
<p>Green (+) symbols represent low risk of bias for the specific criteria for the included study. Ye...
<p>Review authors' judgement about each risk of bias item for each included study. Red, green, and y...
<p>Green = low risk of bias, Yellow = unclear risk of bias, Red = high risk of bias.</p
<p>Red = High risk of bias. Yellow = Moderate risk of bias. Green = Low risk of bias. White = Unknow...
<p>Blue = low risk of bias; Red = high risk of bias; Yellow = unclear risk of bias. Methodological q...
Red circle = High risk of bias, orange circle = moderate risk of bias, green circle = low risk of bi...
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
<p>Red (-): high risk of bias; Yellow (?): unclear risk of bias; Green (+): low risk of bias.</p
<p>Risk of bias. Red (−): high risk of bias; Yellow (?): unknown risk of bias; Green (+): low risk o...
“+” = low risk of bias; “?” = unclear risk of bias; and “-” = high risk of bias.</p
<p>Note: Low risk of bias is indicated by green colour, moderate risk of bias by yellow colour and h...
The items were judged as “low risk” “unclear risk” or “high risk”, where red means “high risk”, gree...
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