Surgery Research and Practice / 2021 / Article / Fig 2

Review Article

Does Premedication with Mucolytic Agents Improve Mucosal Visualization during Oesophagogastroduodenoscopy: A Systematic Review and Meta-Analysis

Figure 2

Risk of bias summary: review authors’ judgments about each risk of bias item for each included study. The green circle indicates low risk of bias, the red circle indicates high risk, and a blank box indicates unclear risk.