Author Correction: Comparison and validation of several scoring systems for non-variceal upper gastrointestinal bleeding: a retrospective study

Affiliations

• ¹ Division of Gastroenterology, Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, 282 Munhwa-ro Jung-gu, Daejeon, 35015, South Korea.
• ² Division of Gastroenterology, Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, 282 Munhwa-ro Jung-gu, Daejeon, 35015, South Korea. [email protected].
• ³ Biomedical Research Institute, Chungnam National University Hospital, Daejeon, South Korea.
• ⁴ Department of Health Care Policy Research, Korea Institute for Health and Social Affairs, Sejong, South Korea.