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Chamadol N, Khuntikeo N, Thinkhamrop B, et al. Association between periductal fibrosis and bile duct dilatation among a population at high risk of cholangiocarcinoma: a cross-sectional study of cholangiocarcinoma screening in Northeast Thailand. BMJ Open 2019;9:e023217. doi: 10.1136/bmjopen-2018-023217
This article was previously published with an error.
Ethics reference number was incorrect. The correct number is HE551404.
