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5von: Prayson, Richard A.2019transfer abstract, in: Su1557 Development of an E-Learning System for the Endoscopic Diagnosis of Early Gastric Cancer: an International Multicenter Randomized Controlled Trial
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11von: Prayson, Richard A.2015transfer abstract, in: Su1557 Development of an E-Learning System for the Endoscopic Diagnosis of Early Gastric Cancer: an International Multicenter Randomized Controlled Trial
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20von: Libert, Diane M.2020transfer abstract, in: Su1557 Development of an E-Learning System for the Endoscopic Diagnosis of Early Gastric Cancer: an International Multicenter Randomized Controlled Trial