You are not lab rats at teaching hospitals: A systematic review of resident and fellow participation leads to improved colonoscopy.

Background: Participation in colonoscopies is an essential aspect of endoscopic training. The purpose of this study was to explore the impact of fellow/trainee participation on colonoscopy outcomes.

Methods: This meta-analysis was registered on the International Prospective Register of Systematic Reviews (PROSPERO).

Is metformin use associated with a reduced risk of oesophageal cancer? A systematic review and meta-analysis.

Objectives: Studies on the association between metformin use and the risk of oesophageal cancer (OC) have generated controversial findings. This updated meta-analysis was conducted to reassess the effects of metformin on OC.

Methods: A comprehensive search strategy was conducted to select relevant studies from origination to February 2021.

Diagnostic Value, Prognostic Value, and Immune Infiltration of Family Members in Liver Cancer: Bioinformatic Analysis.

Background: Liver cancer (LC) is well known for its prevalence as well as its poor prognosis. The aberrant expression of lysyl oxidase () family is associated with liver cancer, but their function and prognostic value in LC remain largely unclear. This study aimed to explore the function and prognostic value of LOX family in LC through bioinformatics analysis and meta-analysis.

Do proton pump inhibitors prevent Barrett's esophagus progression to high-grade dysplasia and esophageal adenocarcinoma? An updated meta-analysis.

Purpose: Previous research on the association between proton pump inhibitor (PPI) use and the risk of progression to high-grade dysplasia (HGD)/esophageal adenocarcinoma (EAC) in Barrett's Esophagus (BE) patients has generated inconsistent findings. This meta-analysis was performed to clarify the association.

Methods: We performed a comprehensive search strategy to select relevant studies up to September 2020.