title: Letter: serum vitamin D levels in primary biliary cirrhosis--authors' reply.
authors.affiliation: Division of Hepatology, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi`an, China.|State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi`an, China.
authors.forename: G
authors.initials: G
authors.lastname: Guo
authors.affiliation: Division of Hepatology, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi`an, China.|State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi`an, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Shi
authors.affiliation: Division of Hepatology, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi`an, China. hanying1@fmmu.edu.cn, zhouxmm@fmmu.edu.cn.|State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi`an, China. hanying1@fmmu.edu.cn, zhouxmm@fmmu.edu.cn.
authors.forename: Y
authors.initials: Y
authors.lastname: Han
authors.affiliation: Division of Hepatology, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi`an, China.|State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi`an, China.
authors.forename: X
authors.initials: X
authors.lastname: Zhou
mesh_terms: D002756:Cholagogues and Choleretics / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008105:Liver Cirrhosis, Biliary / Q000097:blood* / Q000188:drug therapy*; D008297:Male; D014580:Ursodeoxycholic Acid / Q000627:therapeutic use*; D014807:Vitamin D / Q000031:analogs & derivatives*
chemical_list: D002756:Cholagogues and Choleretics; D014807:Vitamin D; D014580:Ursodeoxycholic Acid