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Hsing AW, Gao Y, Han T, Rashid A, Sakoda LC, Wang B, Shen M, Zhang B, Niwa S, Chen J, Fraumeni JF. Gallstones and the risk of biliary tract cancer: a population-based study in China. British Journal of Cancer. 2007 Nov 13;97(11):1577–82. doi: 10.1038/sj.bjc.6604047. |