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Chen-Wang Chang, Chen-Wang Chang, Chen-Wang Chang and Chen-Wang Chang
 
Department of Internal Medicine, Division of Gastroenterology, Nursing and Management, MacKay Junior College of Medicine, Taiwan
1Department of Internal Medicine, Division of Gastroenterology, Nursing and Management, MacKay Junior College of Medicine, Taiwan
Department of Internal Medicine, Division of Gastroenterology, Nursing and Management, MacKay Junior College of Medicine, Taiwan
2Department of Internal Medicine, Division of Gastroenterology, Nursing and Management, MacKay Junior College of Medicine, Mackay Medical College, Taiwan