Outcomes of endoscopic submucosal dissection for gastric epithelial neoplasm in chronic kidney disease patients: propensity score-matched case–control analysis, methodological and statistical issues
Letter to the Editor
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KeywordsCase–control Propensity score Standardized difference
Compliance with ethical standards
Conflict of interest
The authors have no potential conflict of interest relevant to the present study.
© The International Gastric Cancer Association and The Japanese Gastric Cancer Association 2018