Polymorphisms of estrogen receptors and risk of biliary tract cancers and gallstones: a population-based study in Shanghai, China

S. K Park, G Andreotti, A Rashid, J Chen, P. S Rosenberg, K Yu, J Olsen, Y. T Gao, J Deng, L. C Sakoda, M Zhang, M. C Shen, B. S Wang, T. Q Han, B. H Zhang, M Yeager, S. J Chanock and A. W. Hsing

Carcinogenesis 31 ( 5 ): 842 - 846 , 2010