Endoscopic hemostasis combined with vascular interventional therapy for acute nonvariceal upper gastrointestinal bleeding: A meta-analysis

Figure 1 The literature screening process. One hundred and seventy-eight records were retrieved, with no additional studies from other sources. After removing 34 duplicate records, 37 irrelevant studies were excluded, leaving 78 full-text articles for evaluation. Ultimately, 24 studies were included for qualitative synthesis.