title: Letter: coffee consumption and gallstone disease - a cautionary note on the assignment of exposure values in dose-response meta-analyses. Authors' reply.
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, School of Medicine, Institute of Hepatobiliary and Pancreatic Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China.
authors.forename: Y-P
authors.initials: YP
authors.lastname: Zhang
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, School of Medicine, Institute of Hepatobiliary and Pancreatic Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China.
authors.forename: W-Q
authors.initials: WQ
authors.lastname: Li
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, School of Medicine, Institute of Hepatobiliary and Pancreatic Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China. ylsun@zzu.edu.cn.
authors.forename: Y-L
authors.initials: YL
authors.lastname: Sun
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, School of Medicine, Institute of Hepatobiliary and Pancreatic Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China.
authors.forename: R-T
authors.initials: RT
authors.lastname: Zhu
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, School of Medicine, Institute of Hepatobiliary and Pancreatic Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China.
authors.forename: W-J
authors.initials: WJ
authors.lastname: Wang
mesh_terms: D003069:Coffee; D005260:Female; D042882:Gallstones / Q000517:prevention & control*; D006801:Humans; D008297:Male
chemical_list: D003069:Coffee